Rear drum brake pedal

The drum brake pedal comprises a shaped pedal, return spring and lever plate. The Twin's pedal includes its pivot, the Triple's is splined onto a separate pivot shaft. The pedal passes through a frame bracket around which it is sprung. The bush is not lubricated externally. To remove the pedal because of breakage, spring breakage or whatever reason, remove the rear brake cable as already described. From beneath the machine locate and undo the nut and washers which fix the lever plate onto a...

What this book will do and what it wont

As its title describes this is a repair and tune-up guide for 1 erda Twin and Triple motorcycles. The description 'guide* is chosen very carefully it parparte is lie a guide only and will obviously not actually naene your machine by itself. It is assumed that every Laverda owner or user knows somecis* c -tie ways of motorcycling and motorcycles. It is Mfifcdy that a Laverda of the type adkr dnsaan will be your first machine, and therefore we must assume that you have learn ere rasics of...

Emergency maintenance

Rear chain replacement is a messy task. If the chain breaks whilst on the move you are likely to have to stop for some time to come. No attemr . til be given here as to how to fit a chain once it has come off its gearbox sprocket it's very , w, fiddly. To replace a chain for whatever reason. . oosen the adjusters on the swing arm as previously described. Split the chain at the spring link ar. men attach the replacement chain to the one about to be removed and 'pull it through. Let go the ....

Front brake cable replacement

Several types of cable, varying in type and length, have been fitted. Make sure you always have the correct fitment. Cable removal is straightforward provided all the adjustment is taken out of it first. On the Grimeca and late Laverda type, take out the adjustment then press the brake lever at the cable end as hard as possible with your hand and slip the cable nipple end out of its captor. Release the arm. Now unscrew the outer cable adjuster at the brake plate, all the way out, and thereby...

Carburettor stubs

Each carburettor sits on the cylinder head via a stub, distance piece and, in the case of the early Twin, one rubber O ring on all the others, two O rings. The Twin's O ring sits between the distance piece and the cylinder head the others either side of the distance piece. Both the distance piece and the stubs are located over two studs which screw directly into the cylinder head. It is important that the O rings are in good condition and that there is a gas tight seal. Generally speaking there...

Fuse box

The fuse box is located on the left hand side of the Twins and CDI ignition Triples behind the side panel, and under the seat close to the battery top on the later BTZ ignition Triples it's the one with the single knurled-headed screw in the centre of its cover. Beneath the cover are four fuses, except on CDI equipped Triples for which there are two. They are standard automotive fuses, their amperage being clearly marked on the fuse box base. Always clean the fuse box before replacing fuses a...

Wiring loom

Even in the face of strong Japanese competition the wiring looms of all Laverdas take some beating. In many ways they are better because the Italian loom is made with the engineer in mind in other words, it is actually possible to disconnect some of the connections and still live to tell the The wiring loom on the Twins and Triples is nicely designed and tidily executed. Top quality wiring, connectors and fittings are used, the majority of them being supplied by Bosch from Germany although...

Tail lamp and number plate mounting

On all Laverdas except the SFC the tail lamp and number plate have effectively been an integral unit. Three types have been fitted. Two are known as the 'square' unit, the other as the 'round' unit. The SFC uses just the 'round' lens and body direct onto the glass fibre seat unit, the seat unit serving as the number plate. Machines prior to February 1971 used a 'square' CEV unit which was covered in an aluminium cover. The 'round' unit was also CEV, and that came next. The third unit was a...

Swingarm removal and replacement

Although the actual swingarm has differed from machine to machine, dependent basically on whether they were drum or disc rear braked, there are only three basic methods of 'swing'. The 'softer' and earlier machines have rubber bushes, the early and 'sportier' machines have bronze bushes and the late Triples and some SF3s have parallel roller bearings. No matter what method is used, swing arm removal is a similar operation. Remove the rear wheel. On machines where the splitting of the chain is...

Rear brake cable replacement

The principles of rear drum brake cable replacement are those of the front brake this time, however, the cable has captive nipples at each end except for the early Laverda brake, which has a threaded adjuster at the brake plate. Slacken everything off and remove the cable from the brake plate end first. Get under the nearside of the machine and pull the cable out of the captor on the brake pedal it's no easy job because there is little room to move. Do not dismantle the pedal thinking it is...

Chain

Chain replacement is a straightforward task on all machines. Find the spring link and have it resting on the rear sprocket. Chock the rear wheel. Loosen the rear wheel spindle nuts. Loosen the chain adjusters. Loosen the torque arm at the brake plate (drum brake) or the caliper carrier lock nut disc brake). On chaincase machines remove the rear cover). Split the chain and place a piece of wire through the bottom of the two loose ends for safety's sake. Now link up the new chain to the top run,...

Coils

Twins (not late SFC) - Bosch 0 221 114 002 (x 2) Late SFC - Nippon Denso ( x 1) Triples CDI system (black box), Bosch 1 217 280 015 early top fitting 1 217 280 026 later bottom fitting BTZ system (2 separate coils) Nippon Denso 029700 4460 (single). 3250 (twin) BTZ system Amplifiers Bosch 1 217 280 042 ( x 2) Automatic stop relay. (CDI system only) early silver box, Bosch 0 332 204 125 late black tube. CST A 020 25 Condensors Twins - Bosch 1 237 339 136 ( x 2) 0.25 microfarad Automatic advance...

Battery

A number of different shaped and sized batteries have been fitted to all the machines although these have 'stabilized' for the mid to late Twins and all the Triples. In each case the battery is large and normally well up to the task in hand. Batteries used until mid-1978 are now considered to be old-fashioned in construction in that they are of the old convention 'black tar' variety. Modern 'plastic' versions are now used. Each battery type is designed and constructed specifically for the...

Them if you find them Look at your bribes BMnli wmd reios W seals etc

Laverdas have a reputation for breakrri - . - - * tre tree play in all the cables. Check also for fraying or broken strands. Rett. e nm- e r - r other cable is visibly tired. Check hydraulic hoses for chafing and weep -, 1 - e - . water spots on the pipes this is brake fluid's propensity for attracting eter r _re Lights, flashers, horns and instruments - ust. of course, the brakes. Check them all Engine transmission oil Laverda engir.es in joc condition, even with high mileage, do not use oil....

Gear trains and selectors

As previously described, the gear trains and the selectors are now out of the lower crankcase half. Before you dismantle further, very carefully look at the accompanying drawings. These drawings will explain exactly what goes on inside. The gear trains have remained pretty much the same over the years although there have been a few gear size changes. Other major changes amount to the following Early 1000s used the 750 trains until frame number 3707, in late 1975. From then on a needle bearing...

Swingarm care

Most people cannot tell which type of swingarm is fitted to their machine when on the move, so good is the execution Laverda have given to each method. The secret to swingarm success is to have the pivot done up tight enough (40 lb ft) and for non-rubber methods, to have the components packed with fresh, high quality, high melting point grease. A worn swingarm should induce a wobble when riding. If you suspect the cause of such a wobble, set the machine on its centre stand, check tyre pressures...

Carburettor removal and replacement

Carburettor removal is relatively simple on the Twins but hard on the Triples, the reason being that the three units of the Triple's setup are interconnected. For this reason the Twins and Triple are dealt with separately as necessary. First remove the fuel tank. Then remove both rubber carburettor intake trunks. They both pull away. If bellmouths are fitted, unscrew both. Remove any fuel pipe including the balance tube between the two units. Retain the hose clips. If the pipe has become 'hard'...

Gearbox dimensions with bushes as appropriate

Selector forks ID - 14.00 - 14.018mm, selector fork shaft OD - 13.983 - 13.99mm. 2nd gear to main shaft gear ID - 24.99 - 25.07mm, shaft OD 24.595 - 24.98mm, 2nd gear to main shaft end float gear width - 21.35 - 21.40mm. max. space available to thrust washer - 21.60 - 21.650mm. maximum play 0.50mm 4th gear to main shaft gear ID - 20.459 - 20.48mm, shaft OD 20.49 - 20.507mm, 4th gear to main shaft end float gear width 16.95 to 17.00mm, max. space available to thrust washer - 17.30 to 17.35mm...

Side reflectors

Certain machines have been fitted with amber side reflectors, particularly those being sold in North American. These have usually been incorporated in the sides of the flasher units although earlier machines before flashers were fitted carried circular or rectangular reflectors affixed to the side of the headlamp mountings or on the 'tubes'. Also these reflectors have been stuck to the sides of the tail lamp unit, and on the SFC to both the vertical 'wings' and sides of the fairing. Some of...

Wheels tyres9 drive and brakes

Wheel Front wheel removal drum Front wheel removal disc Rear wheel removal drum Rear wheel removal disc brake Replacement of front and rear Wheel care Wheel alignment, balancing and Cush Factory chaincase and chainguard Wheel Drum brake adjustment Drum brake adjustment Front brake cable Rear brake cable Rear drum brake Drum brake inspection shoe and moving part replacement 155 Disc brake pad Caliper removal and Brake pipes and Front disc brake master Rear disc brake master Rear disc brake Disc...

Acknowledgements

My brother once told me to sell my VeL r gt rambler and ride on the roac. I followed his advice, narrowed my choice down to a twin-c gt bree . jur-stroke and looked for the best deal. Back in early 1974, Roger Slater saw to it that I bo - _ erda by being the only motorcycle dealer to answer my request for machine details anc prices through the post. I must thank them both. George Magnus rode in my car when I went Hereirrdshire to collect my first machine, to drive the car back. He goaded me on....

Exhaust Triple

Only one type of Triple exhaust system is factory fitted and that is supplied with all machines not built as Jotas and Mirages. This basic system consists of three down pipes, a three-into-two collector pipe which sits under the gearbox and two silencers. The factory uses seamed silencers except on the Jarama and German market machines which are seamless . The system fitted to the 1000 3C E , Jota and Mirage consists of the same number and description of parts but the collector pipe and the...

Detailed specification

Oankcase primary cover Crankshaft Clutch shaft Crankshaft Cutch drum centre Triples Centre main bearings Triples Starter freewheel Outrigger crankshaft Triples Camshaft x 4 Twins Gearbox mainshaft LHS RHS 5th gear mainshaft SFC and close-ratio Triple only Gearbox layshaft LHS RHS Lower steering head yoke Front wheel Laverda hub x2 32 x 16, needle, NK120 16 all models 30 x 16, needle, NK22 16 all models 35 x 80 x 21, ball until 1972 engine no. 10149 , 8BDY-35 or 6307NR C3 roller, all models 1972...

Swingarm bushes

Rubber bushes the Silentbloc rubber bushes are easily removed by tapping a drift through from the opposite side of the swingarm and carefully driving them out. A spacer tube is fitted between them. Replacement is quite straightforward don't forget the spacer tube between the two bushes. Bronze bushes remove the grease nipple from the underside of the swing arm before attempting to work on the bronze bushes. The pivot pin does not itself bear on the bronze bushes, instead a steel tube does. This...

Drum brake inspection shoe and mtovxng part replacement

For the purposes of this guide all types of drum brake are the same, as they are front to rear. Remove the relevant wheel, pull of liae brake plate. Treat the brake plate and hubs with care The early Laverda rear drum cable fitment and adjustment Twin Laverda rear drum set-up. Note the method of cable adjustment on the drum back plate The early Laverda rear drum cable fitment and adjustment Twin Laverda rear drum set-up. Note the method of cable adjustment on the drum back plate they are very...

Spare parts how to order them

If you have obtained a iac r. spares list, then you should use the. arts number to identify the part you require. If you cannot identify the part with the factory number -en you must supply as much information about your machine possible. You should suppi. . t he frame number and the engine number, although neither may actually be of any use when ne partsman selects the part you require from the shelf. The most important guide for the partsman s your model type and the year it was manufactured...

Electrical system ignition instruments and switch gear

Headlamp and mounting brackets Tail lamp and number plate mounting Side Wiring Fuse Generator Twin dynamo and regulator Generator Triple alternator Starter Ignition system Twin except late SFC Ignition system Triple CDI and BTZ and late SFC Instruments and instrument lighting Switch gear handlebar Brake light switches

Three monthly or every 3000 miles

Undertake the previous service jobs plus the ones given next. The Twins use standard contact points and have adjustable coil ignition. A maintenance check is due at this service time. The Triples have electronic ignition which requries no maintenance. Check and adjust the contact breaker gaps, on the Twins not electronic ignition SFC . Remove the ignition points cover on the lefthand side of the engine. Remove the dynamo belt cover on the opposite side of the engine. Rotate the crankshaft until...

Headlamp and mounting brackets

Several types of headlamp unit have been used the early ones were considered excellent, being mounted in very handsome units, while the later ones are renowned for their power. In fact, Laverda were, if not the first, certainly one of the very first, to fit quartz halogen headlamp bulbs. Pre-October 1972 machines and all 750GTs used a 'long' Bosch 155mm headlamp which incorporated some switchgear in the top from October 1972 to August 1973 a 'short' chromed plastic CEV 170mm was used on SFs....

Generator Twin dynamo and regulator

A Bosch dynamo DC generator is fitted to the front of the crankcase and is belt driven from the crankshaft on the right hand side of the engine. Effectively it's a car unit, similar to that used on a Volkswagen Beetle. Many questioned its use when it was introduced saying that it was even then outdated. However, it did last the production Lie of the Twin and is renowned for its reliability and power. Apart from its weight there can be few disadvantages. Dynamo belt replacement has been dealt...

Air filters and bellmouths

Air filtfer information has been given in the Maintenance section. The only further advice concerns the question of filter fitment or removal. Remember that you should not remove the air filter and expect your machine to perform adequately without altering anything else. Using any machine with standard carburation settings once the air filter has bee removed will result in flat spots, loss of performance and or economy, irregular tickover and extra induction roar. With luck you'll wear your...

Rear disc brake master cylinder

The rear brake master cylinder fitted to cast spoke wheel Twins and Triples is easily removed and refitted. The one used on wire spoke wheel SFCs is a little different. Once removed, the overhaul of both units is similar. The conventional Twin and Triple unit is fixed to a special lug on the frame by A theoretical. e of the full set of hydraulic disc brakes hydraulic banjo on the lower fork leg showing the z r brake light switch uncovered On some Triples the front banjo is mounted on a bracket...

Twins frame numbers

1970 approx. 2800 to 4700 first GT with second stage frame was no. 2833, 1971 approx. 4700 to 8354 first SFC had frame no. 5612, the last 18444 1975 17,629 to first SF3 had frame no. 18608, the last 19634 1976 77 Last models built to a total of approx. 19,000 machines All Twins, whatever the model, had consecutive numbers. The machines tended to be built in model batches although not necessarily in numerical order. For e mple. both SF2s and SF3s were built in 1976. 549 SFCs were made. 167 were...

Cylinders and Pistons

Min. gap between cyl. and piston Max. gap between cyl. and piston Limit of utilization 650 Twin and 1000 Triple Standard piston 74.910 - 74.920mm S50 74.920 - 74.930mm 1000 . -0.4mm - 75.310 - 75.320mm, for 75.40 - 75.418mm -0.6mm - 75.510 - 75.520mm, for 75.60 - 75.618mm Standard piston 79.910 - 79.920mm 7501 79.920 - 79.930mm 1200 , for cylinder bore 80.00 - 80.018mm -0.4mm - 80.310 - 80.320mm, for 80.40 - 80.418mm -0.6mm - 80.810 - 80.520mm, for 80.60 - 80.618mm NOTE Pistons are not...

Oil pump

Much has been discussed on the Twin's pump in the previous sub-section because part of it has to be removed in order to get at the primary drive. If you want to work on the oil pump alone you must remove the ignition contact breaker plate late SFCs have a trigger mechanism which is easily removed instead and the advance retard mechanism and the primary drive cover. Check the oil pump gears' alignment marks which are necessarily described in the previous...

Chassis fuel tank and bodywork

Frame and Fork Forks removal and Forks dismantling and assembly Handlebar removal including levers and grips Yokes removal and replacement Steering Steering head Steering Twistgrip and throttle Rear Swingarmcare Swingarm removal and Swingarm bushes Bodywork Front and rear Fuel Seat Side Mirrors 'Safety'bars Luggage rack and hand Foot Stands Rear number For the purposes of this book there is little of significance to say about either of the two basic types of Laverda frame used for the Twins and...

Foot rests

The rider's foot rests are, in theory, fully adjustable although those fitted to cross-over gear changes make no such pretence. The foot rest, itself, uses a knarled, close fitting to the frame through which a large setscrew bolts to a captive nut. For practical reasons, movement is limited because it is necessary to operate a pedal from that foot rest. Never find yourself locating the footrest without being able to fully operate the appropriate pedal the brake side is the important one. The...

Crossover gearchange and braking systems

American legislation has dictated that the gears must be shifted by a pedal on the left side of the motorcycle. European manufacturers have found themselves following Japanese design to conform. Laverda have not conformed as much as others for their left shift is very much an 'add on' to their standard right shift, but an add-on which does work quite well. Twins and Triples feature two distinct systems. The Twin's system is the most complex. The gear shift consists of a short reversed lever...

Replacement of front and rear wheels

The sequence of replacement is a very straightforward reverse sequence of removal in each case. On front wheels drum brakes adjust the brake cable. disc brake s torque the caliper s to the leg s . When tightening the front axle, hold the speedo drive so that it is not able to twist off the speedo The front disc brake and wheel system for cast wheel machines using Ceriar fo s Marzocchi fork components can differ slightly . Disc brake wire wheel systems are similar cable . Just tighten the...

Exhaust Twin

For all the Twins except the SFC, there have been three basic exhaust systems. The first type consisted of two down pipes and two 'cut-off' silencers the second type consisted of two down pipes and two 'cut-off' silencers with a balance pipe just below the exhaust ports and the third type was the 'big, quiet' one with two down pipes, a balance chamber under the gearbox and two silencers. Whatever type of system is fitted, it is absolutely necessary that the system fits, is undamaged, and does...

Carburettor dismantling and assembly

Petrol Carburetor Jet Pin

NOTE Don't fiddle with Dell'Orto carburettors unless you have to. Every time one is taken down it loses a fraction of its precision fit and in practice you should use new gaskets. It will cost you money you could otherwise save. Also remember that they are generally very reliable and accurate instruments. In the Maintenance section fuel filter and float chamber cleaning has been described this section will cover jet changing, needle changing and general cleaning. For the purposes of this...

Crankshaft and connecting rods

Both crankshafts have a certain number of removable sprockets and bearings which have not previously been discussed in other sub-sections. On the Twin it is quite simple. On the dynamo end there is the starter sprocket which sits behind the starter freewheel. Starter freewheel removal has already been covered in the Maintenance section as has starter chain removal in the Electrical section. Obviously that sprocket is part and parcel of the starter freewheel. It rotates on a needle bearing which...

Petrol taps and fuel lines

Once again little of any consequence can be added to the section already given in the Maintenance chapter on fuel taps. Most early Laverdas, at least over the past few years, have been equipped with high quality 'green' fuel pipe and some jewel like, if fragile, French made hose clips. Most 'plastic' pipe goes petrol-hard with age and therefore needs fairly frequent replacement Laverda's 'green' is better than most and while it fades, it does not become hard before at least thirty months. Try...

Triples frame numbers

No real details are available on the Triples. The following frame retails have been created from design notices and leaked' details 1972 73 First 1000 frame was no. 1001 again 1974 Year starts at approx. frame no. 1507 1975 First cast whee. 3CL was frame no. 3352 1977 78 First 1200 frame no was 1001 again, again 1978 First 1200 with Marzocchi forks in Spring, frame no. 136 First 1000 with Marzocchi forks, frame no. 6078 First 1000 with angled rear shocks, frame no. 6204 First silver framed...

Luggage rack and hand rail

Apart from some rare GTL equipment used on police machines, the factory have produced three types of rear carrier. Each was designed to use the two top shockabsorber mountings and two extra lugs on the rear top two frame tubes, using four nuts and bolts in all. They had a folding horizontal rack which had rubber insets in it. There was the GT and S from 1969 to 1970, SF and 1000 none fit the tail fairing machines. The 1200 and late 1000 and some GTLs use a Honda-type rear hand rail. It is...

Twistgrip and throttle cables

Little can be said about twistgrips and throttle cables that has not already been said in the Maintenance section. Perhaps the major complaint with Laverda twistgrips, particularly the ones used with Nippon Denso switch gear, is that they are too slow. The earlier throttles used with pre-ND switches were made by Tommaselli and the complaint was not so serious. For those who worry about a slow throttle it is possible to remove just the ND throttle, retain the switch and fit a Tommaselli throttle...

Crankcase

Splitting the crankcase halves is not terribly difficult on both models although it is quite long winded for there are lots of fixing setscrews. Before you can split them, and they both split horizontally, you must remove the following parts. Remember also that splitting the crankcase will reveal only the crankshaft, bearings complete with connecting rods, gear trains and selecting but not shifting mechanism. Twin Cylinder head, barrel, pistons, primary drive, clutch, dipstick, starter motor...

Disc brake hydraulic system bleeding

Efficient braking, all things being equal, only comes from a well blei hydraulic system. Air in that system is a killer. Air can enter the hydraulic system through a too low master cylinder fluid reservoir level, through leakage in component seals or when a component is dismantled. Brake bleeding, bleeds , that air out of the system. Always use the highest grade of approved brake fluid available. Everyone knows the best brands. Never re-use fluid which has been used before and never undertake...

Gear shift system and gearbox sprocket

The gear shift system is so called to differentiate it from the selector system which is inside the crankcase halves. The shift system is external to the crankcase and can be worked on without removing the engine from the frame. The shift system starts with the gear lever On the Twins and Triples there are two standard levers. Both are interchangeable the long fits the Twin, the short' fits the Triple. The SFC and some GTLs, as well as some other earlier Twins, featured a heel and toe rocking...

Instruments and instrument lighting

Early Twins were fitted with a pair of Smiths instruments a rev counter and speedometer. Both were cable driven as were the Nippon Denso instruments which replaced them. The first Twin with ND instruments was frame number 7056, an SF, in the autumn of 1971. Four basic speedometers were supplied by Smiths Industries between 1967 and 1972 3000 sets were supplied in both 1971 and 1972. The first two instruments were SSM 5001-09 and -10 mph and Km h instruments of 80mm in diameter. Both had black...

Cylinder head camshaft and valve gear wear Twin and Triple

The valves can be removed using a conventional valve spring compressor. Note where they are positioned, for they must be replaced in the same position. There is nothing fancy to be done. Conventional collets, springs collars and one spring Triples or twin springs Twins per valve are used. Late Twins and Triples have a rubber inlet valve oil seal fitted. If your machine has done any mileage at all, then automatically replace the valve springs. Examine each valve very carefully for scoring on its...

Drum brake adjustment front

Motorcycle Drum Brake Adjustment

The front brake lever should be free to move between 1 and 2.5mm at the fulcrum end, or 8 to 15mm at the ball end. The lever adjuster can be used to provide free movement as necessary, no matter what type of drum brake is fitted. When adjustment is completed, the brake shoes should be just 'off' rubbing on the drums. If the lever cannot provide the freeplay necessary then you should slacken the adjustment-out at the lever and tackle the other end of the cable. Take up some of the adjustment on...

Disc brake pad replacement

Brembo calipers have been used throughout on the machines being dealt with in this guide. They have an excellent reputation for reliability and strength, not to mention effectiveness. On most machines all that will need to be done regularly to the disc crakes is pad replacement. Remove the little plastic cover from the top of the caliper it grips on both its inner edges. With a long, thin drift tap out the two cross pins which hold the pads in the caliper body, from the 'inside', i.e. from...

Twin cylinder head camshaft and valve gear

Laverda 650 Vicenza

The cylinder head must be removed from the machine if you are to work on any of the components hidden within it. It can be removed once the engine is hinged forward while still in the frame, or with the engine on the bench. To remove the cambox cover, first disconnect the breather pipe from the breather valve. This is held by a conventional hose clip and is a push-on fit. Once it's off it's a good idea to unscrew and remove the breather valve. This is a plastic connector which screws in the...

Fuel tank

Laverda 650 Vicenza

Although numerous types of steel fuel tank have been used over the years, they are all mounted in the same way. Perhaps the most interesting tank is the one used on the earliest machines which had a Triumph-type luggage rack fitted. This rack used four screws to mount it with captive nuts . Some early machines had rubber knee pads glued to them. The last type of mudguarding fitted to the Twin with rubber mounted front. Other components do differ The Triple's mudguarding for those using...

Carburettor tuning

Motorcycle Twin Choke Cable

Carburettor tuning in this section strictly covers re-setting and synchronisation and does not discuss jet slide needle fitting. I have assumed that the carburettors are to standard specification, or at least, that your specification has been proven to work. When and how often you tune your carburettors will depend on a number of factors These will vary from the state of wear of your instruments to your riding method. For most of the job discussed here, it helps to have help from another...

Brake light switches

Laverda Brake Light Switch

Brake light switches are now compulsory in most countries Laverda have fitted them front and rear for some years in fact the front one appeared in March 1969 on frame number 1989, rear ones having always been fitted. The front drum brake light switch sits in the front hand lever and is fitted parallel to the cable run. As the hand lever is released, it touches the plunger of the switch and pushes it in, and the light goes on. Obviously it is important that the switch's adjustment is right...

Six monthly or every 6000 miles

Undertake the previous service jobs plus the ones given next. Air filter maintenance is very important to the free running of the engine. The 6 monthly 6000 mile maintenance schedule is only a guide it may be necessary to check the air filter more often in dusty conditions. There are three basic types of filter used pre-October 1972 and post-October Twins although not all machines were so fitted , and Triples. For the early Twins, remove the seat, fuel tank and battery. Unscrew and take off the...

Yokes removal and replacement

So many different types of fork yoke triple clamp have been fitted to the Twin and Triple Laverdas that it is not always possible to specify replacement parts just by quoting machine type and frame number. Instead, it is almost necessary to remove the offending components and have them matched No owner will want to change the specification of his fork yokes just for the sake of doing so because of their replacement price. Most owners will not be able to judge a difference in specification on...

Engine removal and replacement

Laverda 650 Vicenza

Engine removal is a serious business and should not be taken lightly. It will require the help of another strong person. The engine unit is heavy m both machines in the Twin it hangs in the frame and therefore requires careful lowering and in the Triple it has to be lifted at an angle to clear the frame tubes. For the Twin you are going to need a stout wooden box on which to lower the unit, and then a long piece of timber to lever it back in again. The Triple requires nothing more than a piece...

Triple cylinder head camshafts and valve gear

Crankcase Breather Suzuki 750

If you have already measured and adjusted the camshaft clearances on the valve stems then you have already experienced most of the work necessary to remove the Triple's cylinder head. The first procedure will detail head removal with the engine on the bench. The second one gives further wrinkles for removing it with the engine still in the frame. Follow the full instructions given in the Maintenance section for valve clearance measurement and adjustment to the point where both camshafts are...

Fork dismantling and assembly

Laverda 650 Vicenza

Let's assume that you have removed the slider from the fork leg. Do not turn the stanchion upside down because damper rod components could fall out after the spring. The only further disassembly work on the slider is to remove the fork seal s . The Marzocchi forks have a damper rod seat located at the bottom of the slider. Most forks have two seals per leg although the early forks and those of the GTL have only one per leg. Each seal is an interference fit even though there is a large circlip...

Forks removal and replacement

Place your machine on level ground, on its centre stand and remove the front wheel. If you just want to remove the sliders fork legs proceed as follows if, however, you want to remove the complete leg stanchion and slider together start your reading now, although the meat of it is a little further on, at the start of the paragraph after next. To remove a slider, drain the fork oil, obtain an alien key of the correct size and place it up through the bottom of the fork leg. The best alien keys...

Primary drive and clutch

Clutch Plate For Laverda

The primary drives and clutches of both the Twins and Triples are effectively the same although there are some disassembly and assembly differences mostly concerning other components. Before starting any work on the primary drive and or clutch, you must drain the engine oil and slacken right off the primary chain adjuster. This is discussed in the Maintenance section. On the Twin, remove the contact points cover and dismantle and remove the 'ignition system' as described in the Electrical and...

Ignition system Triples CDI and BTZ and late SFC

Laverda 650 Vicenza

Unlike the owner complaints received on the Triple alternator, those for the early ignition system were not really anyone's fault. The equipment supplied by Bosch for the Triple was of good quality and was certainly fit for the task in hand. It worked on those early machines in southern Europe warm and dry but not on those in northern Europe cold and wet . Eventually Bosch and Laverda working together found that it was Britain's damp climate which caused the problem. The Triple's 'black box'...