VALVE CLEARANCE ADJUSTMENT

INSP

ADJ

1 2

3

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 (exhaust 1 and intake 2).

NOTE:

Attach a wire 3 to the timing chain to pre- vent it from falling into the crankcase.

Remove the valve lifters 4 and the pads 5.

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

Pad Availability:

25 increments

 

 

 

 

 

No. 120

1.20 mm

Pads are available in

~

~

0.05 mm increments

No. 240

2.40 mm

 

 

 

NOTE:

The thickness a of each pad is indicated in hundreths of millimeters on the pad upper surface.

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Yamaha WR45OFR service manual Pad range Pad Availability Increments 20 mm, Mm increments, 40 mm