Instruction manual

CLUTCH SPRING ADJUSTMENT

If clutch slip occurs the most probable cause is either incorrect cable adjustment or

absence of free movement of the internal clutch lever. If both are found to be correct

the clutch spring adjusting nuts may require adjustment.

To obtain access to clutch spring adjusting nuts, remove front half of chaincase as already

detailed.

With the slotted driver provided on one of the thin spanners in the tool kit, screw each

nut, in turn, fully home, then unscrew exactly four complete turns.

Before replacing outer half of chain cover, test for slip by starting up the engine, engaging

top gear, and applying the rear brake when it should be possible to pull up the engine on

full throttle without slip occurring.

If to cure slip it is found neccessary to further tighten the adjusting nuts this is a clear

indication that either the clutch springs have lost their tension, the inserts are so worn

that they require renewal or that they have become impregnated with oil.

In the two former instances renewals are necessary, but if oil is the cause of slip this may

be rectified by soaking the plates in petrol and allowing to dry off. If inserts are glazed

roughen with sand paper.

Illustration 15

A FIXED CLUTCH INTERNAL ACTUATING

PLATE

B CLUTCH INTERNAL OPERATING LEVER

C GEAR BOX MAINSHAFT

D CLUTCH SPROCKET

E CLUTCH SPRING

F LOCK NUT FOR CLUTCH ROD THRUST

CUP

G THRUST CUP (in clutch pressure plate) FOR

CLUTCH ROD

Showing clutch, gear box main shaft and clutch operating mechanism