Specification

Piston displacement Bore x stroke Compression ratio

3hp g rev/min

75 x 74mm 80 x 74mm 75 x 74mm/80 x 74mm 9:0:1 (650. 1000. 3C & 3CL), 7:7:1 (750GT), 9.65:1 & 8.9:1 (750SF & GTL). 9.8:1 & 10.5:1 (SFC), 10.0:1 (1000 3C(E) &

50 g 6a00 650). 52 @ 6600 (750GT), 60 @ 6600 (750S SF). 66 @ 7300 73 750SF), 65 @ 7000 (750SF), 52 @ f 300 "30GTL . 70 or "5 g 7500 (SFC), 80 @ 7250 (10001

Company policy decided that pc«*er Terpwts were not :: :«e announced after mid-1974. Their first 1000 Triple accompaaiad Hkeu last definition. Fran then on the answer was always 'enough' Torque @ rev/min 650.. 5u37 ipna @ 4500

Ear.". 7501 6.60 i?c m 455C NOTE: Torque figures have never been

NOTE:

Wheelbase Seat Height Ground clearance Curb weight (dry) Rake and trail

Betwaasr 1452 - 1-MSOnee Between. "«O - MOHbbe l«o - . -».man Der—m 115 audi 225 i| except SFC) 730GT & GEL SF 2&~- 82mm sfc 2®- bbb

I»: :l">: »■ : .s r Cerianis 28°/100mm r :- .: i>- ; arallel forks to steering head)

: r.- . 1" atres (750 GTL and early 1000), 25 litres SFC. 20.5 litres (1000). 19.5 litres (1200)

5-3 Straight SAE40 or 50 weight oil can be used, as : -r 10W 40 in winter, if necessary). See text

3 litres SAE 10

1 "0 cc 650. 750GT "50S SF. 750GTL with 35mm forks). IX) cc others with 38mm Ceriani forks) 14 3 cc Triples w::h 38mm Marzocchi forks) 3.50 x 18 [650. "SOGT). 4.10H x 18 (others) ■ 18 tyres whdst some 1973/76 machines used 4.00 x 18

4 00 x It 550. 750GT), 4.10H x 18 (others, with option of 4.25H x 18 for 1000 & 1200). See text 2" - 28psi through to 31psi (33psi SFC) 30psi through to 34psi (36psi SFC)

(The above are subject to rider weight and choice. Keep 3psi difference front to rear). See text

Tappet clearance COLD inlet 0.15mm. exhaust 0.20mm (all 650 & 750 models)

NOTE: certain early SFs used a 0.25mm exhaust clearance inlet 0.20mm. exhaust 0.25mm (1000 & 1200) Contact breaker gap 0.4 - 0.5mm (not late SFC, 1000 & 1200)

Spark plug type Champion N2 or Bosch W260T2

(19mm long, 14mm diameter)

NOTE: The appropriate racing plugs should be used for track-going machines — Champion N-54R or N-57R is a good start

Fuel specification Fuel tank capacity

Oil specification

Oil sump capacity Front fork leg oil type Front fork leg oil capacity

Tyre fitment — front NOTE: Some early Twins used 3.25 Tyre fitment — rear

Spark plug gap Gearbox sprocket teeth

Rear wheel sprocket teeth

Chain type

NOTE:

19 teeth (all models, except), 18 teeth (optional on all), 16 (1200)*

40 teeth (standard fitment on all models except) 42 teeth (750GT, 750GTL) and 34 (1200)*

Option sprockets were available ostensibly for the SFC of 36, 37, 38, 39, 41

Regina 5/s x 3/e (all models except), Regina V* x 3/b (1200)

*A ratio of 18/42 was used on a few 1000s in 1974 and 1975 for the USA to improve battery charging

No. of pitches 104 (650, 750GT & 750S), then 106 (other Twins and

Carburettor type Dell'Orto VHB 29AD/AS (650 & 750GT to late 1969),

(AD - left. AS - right) VHB30AD/AS (750S, early SF, and GT late 1969

onwards),

VHB30AD/AS (750GTL), PHF36AD AS (750SF from 1973), PHB36AD/AS (SFC), PHF32AD AD AS (1000 & 1200) NOTE: Some of the 1972/73 SFCs were fitted with Amal 36mm Concentric carburettors. Details are as follows: Type 1036 6 and L1036/7 — Main jet 350. Pilot jet 35. Needle jet 107, Needle position 2, Needle type 0. Throttle valve 3. (Only 200 pairs were supplied in early 1972)

Type of needle

Main jet

Pilot jet

Needle position Float level setting Standard air screw setting Air filter

Tick-over speed

Cam. chain tension

Primary chain tension Rear drive chain tension

Clutch cable lever freeplay Front brake lever freeplay Rear brake lever freeplay Throttle cable freeplay

V3/2A (650, 750S & 750GTL; V6/2A was also used in 1970), V2/2A (750GT). K2 (750SF and SFC), K1 (1000), K14 (1200)

125 (650, 750S and early SF). 112 (750GT), 140 (later 750SF), 122 (750GTL). 175 or 180 (SFC with silencers or megaphone), 118/145 {lOOOJota & 3C(E)), 115/145 (1200/ Mirage), 165 (Jota with big bore collector-option) 50 (650 & SFC), 55 (750GT. 750S. 750GTL, 1000 & 1200 Mirage), 60 (750SF), 65 (1200;

2nd notch (3rd or bottom notch on Jota with 165 main jet) VHB type 25mm, PHF/PHB type 18mm. See text 1 Vi turns ± quarter turn

Horizontal, serviceable (650 & 750GT), Vertical, replaceable (750SF & 750GTL), Washable (1000 & 1200) (All 750S & SFC, plus early SFs were not fitted with air filters)

800 rpm (all Twins except SFC, and Triples except 3C(E) and Jota), 1000-1200 rpm (Jota and, if lucky, SFC!) Adjustable (all Twins), 5mm above and below horizontal line of chain run — 10mm in total (1000 & 1200) Adjustable. See text

Adjustable. See text, between 10-25mm vertical displacement on lower run 1.5 - 2.5mm

Just enough to stop the drum linings or disc pads rubbing

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