VALVE CLEARANCE INSPECTION AND ADJUSTMENT

INSP

ADJ

Measure the valve clearance e using a feeler gauge 1.

NOTE:

Record the measured reading if the clear- ance is incorrect.

6.Adjust:

• Valve clearance

Adjustment steps:

Remove the camshaft (intake and exhaust). Refer to “CAMSHAFTS” section in the CHAPTER 4.

Remove the valve lifters 1 and the pads

2.

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 select- ing 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

 

 

 

 

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Image 86
Yamaha WR250FM service manual Pad range Pad Availability Increments 20 mm, Mm increments, 40 mm