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Yamaha WR426F Manuel D'atelier Du Proprietaire page 274

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VALVE CLEARANCE ADJUSTMENT
3 - 21
5. Adjust:
Valve clearance
Adjustment steps:
Loosen the timing chain tensioner cap
bolt.
Remove the timing chain tensioner and
camshaft caps.
NOTE:
Remove the camshaft cap bolts in a criss-
cross pattern from the outside working
inwards.
Remove the camshaft (intake 1 and
exhaust 2).
NOTE:
Attach a wire 3 to the timing chain to pre-
vent it from falling into the crankcase.
Remove the decompression guide 4,
cable 5, bolt 6 and decompression shaft
7.
Remove the valve lifters 8 and the pads
9.
NOTE:
Place a rag in the timing chain space to
prevent pads from falling into the crank-
case.
Identity each valve lifter and pad position
very carefully so that they can be rein-
stalled in their original place.
Select the proper pad using the pad
selecting table.
Pad range
No. 120
1.20 mm
~
~
No. 240
2.40 mm
NOTE:
The thickness a of each pad is indicated in
hundreths of millimeters on the pad upper
surface.
INSP
ADJ
Pad Availability:
25 increments
Pads are available in
0.05 mm increments

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Ce manuel est également adapté pour:

Wr426fnWr400fWr400fn