Name: Yamaha YZ125 2008
Brand: Yamaha
Rating: 4 (1 reviews)

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MAINTENANCE SPECIFICATIONS

Out of round limit ---- 0.01 mm

(0.0004 in)

Piston:

Piston size/ 53.957–53.972 mm (2.1243–2.1249 in) ----

Measuring point "H" 17.5 mm (0.69 in) ----

Piston clearance 0.040–0.045 mmm (0.0016–0.0018 in) 0.1 mm (0.004

in)

Piston offset 0.5 mm (0.019 in)/EX-side ----

Piston pin:

Piston pin outside diameter 14.995–15.000 mm (0.5904–0.5906 in) 14.975 mm

(0.5896 in)

Piston ring:

Sectional sketch Plain ----

B=1.0 mm (0.039 in) ----

T=2.35 mm (0.093 in) ----

End gap (installed) 0.5–0.7 mm (0.020–0.028 in) 1.2 mm (0.047

in)

Side clearance (installed) 0.035–0.070 mm (0.0014~0.0028 in) 0.1 mm (0.004

in)

Crankshaft:

Crank width "A" 55.90–55.95 mm (2.201–2.203 in) ----

Runout limit "C" 0.03 mm (0.0012 in) 0.05 mm

(0.0020 in)

Connecting rod big end side clearance "D" 0.06–0.64 mm (0.002–0.025 in) ----

Small end free play "F" 0.8–1.0 mm (0.031–0.039 in) 2.0 mm (0.08

in)

----

Clutch:

Friction plate thickness 2.9–3.1 mm (0.114–0.122 in) 2.8 mm (0.110

in)

Quantity 8 ----

Clutch plate thickness 1.5–1.7 mm (0.059–0.067 in) ----

Quantity 7 ----

Item Standard Limit

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Yamaha YZ125 2008 Specifications

General