Clutch

No. of plates

Thickness of Ferodo plates Thickness of steel plates Spring free length Internal bush diameter

Shaft diameter Gap (new)

11 (pre-1971), 13 (thereafter Twins and Triple clutch plates differ) (6 & 7 respective/, are Ferodo plates)

1.60mm (all models)

48.0mm (minimum limit +6.5mm

22.018 - 22.027mm (limits Triples).

21.991 - 22.000mm (limits

0.018 - 0.027mm (limit O.lOCtrTriples)

Gear ratios

All 650 and first hundred or so 750 Twins, and

Gear ratios

All 650 and first hundred or so 750 Twins, and

all SFCs and close ratio cluster

1st

2.406

(2.214)

for Triples in brackets

2nd

1.739

(1.607)

3rd

1.486

(1.269)

4th

1.173

(1.083)

5th

1.000

All 750s, and 1000s up to serial number 3707

(late 1975?), and

all Triples, including all 1200s, after

1st

2.618

(2.857)

1000 serial number 3707, in

2nd

1.883

brackets

3rd

1.373

4th

1.173

5th

1.000

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