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Transmission Service
T H E GEAR B O X
The gear box, cylindrical in shape, is housed in an arc machined on the crankcase, and
retained by two high tensile steel straps.
gear box shell, partial movement of the gear box in its housing provides latitude for front
chain adjustment.
The gear box provides four speeds and has a positive foot change, operated by the right
foot and a kickstarter.
The transmission shock absorber is incorporated in the clutch assembly,
TO REMOVE GEAR B O X OUTER COVER
Remove the silencer fixing nut, the two nuts on the exhaust pipe bracket and take off
the silencer and pipe as a unit.
Remove the right side footrest.
Remove gear indicator and bolt.
Remove footchange pedal (release the pinch bolt).
Remove kickstarter pinch bolt, then the crank.
Remove four screws securing timing cover.
The cover can now be removed.
TO REMOVE GEAR B O X END COVER
Remove the outer cover as described.
Use a tray under gear box to catch oil and remove drain plug.
Remove six screws securing end cover.
Temporarily refit footchange pedal to pull off the cover.
NOTE—If the gasket is renewed, the cut-away for clutch cable entry is at 11 o'clock.
Replace parts in reverse order, after again removing footchange pedal.
The gear box with end cover removed is shown in illustration 7.
TO REMOVE GEAR B O X INNER COVER
Follow instructions for removing the outer and end cover, after selecting neutral position.
Disconnect clutch cable,
Unscrew clutch body lock ring, take out the body (watch for the a" ball bearing, also
the locating peg, which can fall out of position).
The gear box mainshaft nut is now exposed, remove the nut, also the nut on the foot-
change quadrant spindle—the end cover can then be removed.
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As the gear box mainshaft is eccentric to the
Illustration 7
Gearbox with end cover removed
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