Yamaha XS650SE, Руководство по ремонту

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3-2 ENGINE DISASSEMBLY
A. Governor and breaker assembly removal
Remove the following parts in the order
given.
1. Breaker cover
2. Breaker backing plate
3. Breaker housing
4. Governor cover
5. Notched plate
6. Lock nut (using punch and hammer)
7. Governor assembly
Breaker shaft (to the point side)
9. Dowel pin
10. Advance unit housing
B. Cylinder head and cylinder removal
1.
2.
3.
4.
5.
6.
a.
Remove the oil delivery and pipe fitting
attached to the crankcase. Note place
ment of copper gaskets.
Remove all tappet covers.
Remove spark plugs.
Remove four cylinder head cover holding
bolts, three cylinder head holding bolts
and eight cylinder head holding nuts.
Remove the head cover. It may be nec-
essary to tap each lightly with a soft
hammer.
Remove the camshaft as follows.
Remove tensioner adjusting bolt to make
the chain tension loose.
b. Push out the master link pins with the
cam chain cutter.
c. Tie each end of the camchain with a wire
to prevent it from falling into the crank-
case.
7. Remove the cylinder head and cylinder.
NOTE:
It is advisable to remove the stator and
rotor after finding the place of the master
link pins. Refer to item “F. Generator
C. Rocker arm removal
1. Remove rocker shaft covers.
2. Remove shouldered sleeves and O-rings.
3. Withdraw rocker shafts with the special
tool or 6 mm bolt.
D. Valve removal
1.
2.
3.
Compress the valve spring and then re-
move both retainer locks.
Remove the compressor and lift off the
retainer and springs.
Remove valve stem seals.
Remove valves.
NOTE:
Deburr any deformed valve stem end. Use
an oil stone to smooth the stem end. This
will help prevent damage to the valve
guide during valve removal.
E. Piston removal
Remove piston pin clips, piston pins and
pistons.
F. Generator removal
1. Remove the stator.
2. Remove the securing nut and lock washer.
3. Mount the rotor puller (special tool) onto
the rotor and pull the rotor off.
i
G. Primary drive gear and clutch assembly
moval
1.
2.
3.
4.
Remove the crankcase cover (right).
Loosen the drive gear securing nut by first
placing a rag folded into many layers be-
tween the teeth of gears to lock them.
Remove six clutch spring screws and pre-
ssure plate.
Remove clutch plates, friction plates,
push crown, two push rods and two balls.
removal.”