Yamaha MX360 - Maintenance Specifications; Engine

MAINTENANCE SPECIFICATIONS
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SPECIFICATIONS
MAINTENANCE SPECIFICATIONS
ENGINE
Piston:
Piston-to-cylinder clearance 0.015–0.029 mm (0.0006–0.0011 in)
Limit 0.150 mm (0.0059 in)
Piston diameter 84.977–84.998 mm (3.3455–3.3464 in)
Limit 84.9 mm (3.3425 in)
Measuring point (from piston
skir
t bottom)
19.5 mm (0.767 in)
Oversize 1st 85.25 mm (3.3563 in)
2nd 85.50 mm (3.3661 in)
Piston pin hole inside diameter 20.004–20.015 mm (0.7872–0.7874 in)
Limit 20.045 mm (0.7892 in)
Piston pin:
Piston pin diameter 19.995–20.000 mm (0.7872–0.7874 in)
Limit 19.975 mm (0.7864 in)
Piston ring:
Top ring
Typ e Barrel
Dimensions 1.2  3.1 mm (0.0472  0.1220 in)
End gap (installed) 0.20–0.35 mm (0.0079–0.0138 in)
Limit 0.60 mm (0.0236 in)
Side clearance 0.04–0.08 mm (0.0016–0.0031 in)
Limit 0.13 mm (0.0051 in)
2nd ring
Typ e Ta p e r
Dimensions 1.2  3.
2 mm (0.0472  0.1260 in)
End gap (installed) 0.30–0.45 mm (0.0118–0.0177 in)
Limit 0.80 mm (0.0315 in)
Side clearance 0.03–0.07 mm (0.0012–0.0028 in)
Limit 0.13 mm (0.0051 in)
Oil ring
Typ e 3-piece type
Dimensions 2.5  2.
5 mm (0.0984  0.0984 in)
End gap (installed) 0.20–0.70 mm (0.0079–0.0276 in)
Cylinder head:
Warpage limit 0.05 mm (0.002 in)
Cylinder:
Bore 85.000–85.020 mm (3.3465–3.3472 in)
Limit 85.070 mm (3.3492 in)