Yamaha YZ125 2015, Owner'S Service Manual

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2-4
MAINTENANCE SPECIFICATIONS
Crankshaft:
Crank width "A" 55.90–55.95 mm (2.201–2.203 in) ----
Runout limit "C" 0.030 mm (0.0012 in) 0.050 mm
(0.0020 in)
Connecting rod big end side clearance "D" 0.060–0.640 mm (0.0024–0.0252 in) ----
Small end free play "F" 0.80–1.00 mm (0.03–0.04 in) 2.0 mm (0.08
in)
Clutch:
Friction plate thickness 2.90–3.10 mm (0.114–0.122 in) 2.80 mm
(0.110 in)
Quantity 8 ----
Clutch plate thickness 1.50–1.70 mm (0.059–0.067 in) ----
Quantity 7 ----
Warp limit ---- 0.20 mm
(0.008 in)
Clutch spring free length 40.10 mm (1.58 in) 38.10 mm
(1.50 in)
Quantity 5 ----
Clutch housing thrust clearance 0.15–0.26 mm (0.006–0.010 in) ----
Clutch housing radial clearance 0.01–0.04 mm (0.0006–0.0018 in) ----
Clutch release method Inner push, cam push ----
Transmission:
Main axle deflection limit ---- 0.01 mm
(0.0004 in)
Drive axle deflection limit ---- 0.01 mm
(0.0004 in)
Shifter:
Shifting type Cam drum and guide bar ----
Guide bar bending limit ---- 0.050 mm
(0.0020 in)
Kick starter type: Kick and mesh type ----
Kick clip friction force P=7.80–11.80 N (0.80–1.20 kg, 1.75–2.65 lb) ----
Air filter oil grade (oiled filter): Foam-air-filter oil or equivalent oil ----
Item Standard Limit