Yamaha FX10X Service Manual page 502

Hide thumbs Also See for FX10X:

CONNECTING RODS AND PISTONS

a 11.0 mm (0.43 in) from the bottom edge of the piston.

Piston-to-cylinder clearance =

Eliminate the carbon deposits from the piston ring

grooves and rings before measuring the side clear-

• Measure piston skirt diameter "P" with the

Piston size (standard) (P):

81.950 ~ 81.965 mm

(3.2264 ~ 3.2270 in)

• If out of specification, replace the piston and

piston rings as a set.

• Calculate the piston-to-cylinder clearance with

the following formula.

Cylinder bore "C" –

Piston skirt diameter "P"

Piston-to-cylinder clearance:

0.035 ~ 0.060 mm

(0.0014 ~ 0.0024 in)

<Limit>: 0.120 mm (0.0047 in)

• If out of specification, replace the crankcase,

and the piston and piston rings as a set.

• Piston ring side clearance

Use the thickness gauge 1.

Out of specification → Replace the piston and

piston rings as a set.

Piston rings side clearance:

0.030 ~ 0.070 mm

(0.0012 ~ 0.0028 in)

0.020 ~ 0.060 mm

(0.0008 ~ 0.0024 in)

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