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Dis
I.
Nm
BW
bd
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
assembly
Open the seat. Remove the fuel tank.
. Remove the upper hanger brackets
. Disconnect the tachometer cable.
. Remove the ignition coils.
. Remove the contact breaker cover.
plate; take out the plate.
removing the attaching bolt.
. Remove the tappet adjusting hole caps from the cylinder
head cover; loosen the rocker arm adjusting screws.
. Remove a total of eight bolts and remove the cylinder head
cover.
Disassembly of cylinder head cover
1) Withdraw 6-mm dowels from the cover. Remove the
rocker arm shaft plugs, rocker arm shaft and rocker
arm.
2) Pry off the snap ring and take out the tachometer
gear, thrust washers, tachometer gear collar and oil
seal from the cover.
Remove the muffler.
Separate the carburetor from the cylinder head.
Unscrew bolts which hold the cam sprocket in position;
remove the cam sprocket from the camshaft.
NOTE:
When removing, use care not to allow bolt to drop into
the crankcase.
Remove the cam chain from the sprocket.
Remove the oil seal from the camshaft.
Remove the camshaft together with the cam sprocket.
NOTE:
Hold the cam chain with wire or the like to prevent the
chain from falling in the crankcase.
Remove the tensioner bolt.
Remove the spark plug.
Remove four cylinder head hold-down cap nuts and bolt;
take out the cylinder head.
Remove the cylinder head gasket.
26
Fig. 3-3
@ Screw
® Bolt
@ Contact breaker base plate
Fig. 3—4
@ Rocker arm shaft plug @ Rocker arm
@ 6-mm dowel pin
® Tachometer driven pinion
2
Fig. 3-5
© Cam sprocket
@ Cam sprocket bolt
@ Oil seal
@ Cam chain
® Camshaft
eo P
Fig. 3—6
@ Cap nut
@ Tensioner bolt
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