TECHNICAL DATA - ENGINE TOLERANCES, WEAR LIMITS
205
Camshaft - cam height
Exhaust
33.10… 33.30 mm (1.3031… 1.311 in)
Camshaft - cam height (450 SX ATV)
Intake
33.90… 34.10 mm (1.3346… 1.3425 in)
Camshaft - cam height (505 SX ATV)
Intake
34.20… 34.40 mm (1.3465… 1.3543 in)
Camshaft bearing - radial clearance
Radial clearance
0.029… 0.053 mm (0.00114… 0.00209 in)
Wear limit
0.055 mm (0.00217 in)
Valve spring
Minimum length
42.8 mm (1.685 in)
Valve - sealing seat width
Intake
1.50 mm (0.0591 in)
Exhaust
1.50 mm (0.0591 in)
Valve - run-out
At the valve plate
≤
0.05 mm (
≤
0.002 in)
At the valve stem
≤
0.05 mm (
≤
0.002 in)
Valve spring seat - thickness
1.4… 1.5 mm (0.055… 0.059 in)
Cylinder/cylinder head - distortion of sealing area
≤
0.10 mm (
≤
0.0039 in)
Piston - diameter (450 SX ATV)
Size I
96.960… 96.970 mm (3.81732… 3.81771 in)
Size II
96.971… 96.980 mm (3.81775… 3.8181 in)
Piston - diameter (505 SX ATV)
Size I
99.960… 99.970 mm (3.93543… 3.93582 in)
Size II
99.971… 99.980 mm (3.93586… 3.93621 in)
Cylinder - drill hole diameter (450 SX ATV)
Size I
97.000… 97.012 mm (3.81889… 3.81936 in)
Size II
97.013… 97.025 mm (3.8194… 3.81987 in)
Cylinder - drill hole diameter (505 SX ATV)
Size I
100.000… 100.012 mm (3.937… 3.93747 in)
Size II
100.013… 100.025 mm (3.93751… 3.93798 in)
Piston/cylinder - mounting clearance
Size I
0.030… 0.052 mm (0.00118… 0.00205 in)
Size II
0.032… 0.054 mm (0.00126… 0.00213 in)
Wear limit
0.070 mm (0.00276 in)
Piston ring - end gap
Compression ring
≤
0.80 mm (
≤
0.0315 in)
Oil scraper ring
≤
1.00 mm (
≤
0.0394 in)
Connecting rod - end play of lower conrod bearing
0.40… 0.60 mm (0.0157… 0.0236 in)
Crankshaft - run-out at bearing pin
≤
0.10 mm (
≤
0.0039 in)
Crankshaft - end play
0.25… 0.35 mm (0.0098… 0.0138 in)
Clutch facing disk - thickness
≥
2.6 mm (
≥
0.102 in)
Clutch spring - length
39.0… 40.0 mm (1.535… 1.575 in)
Contact surface of clutch facing discs in outer clutch hub
≤
0.5 mm (
≤
0.02 in)
Oil pressure regulator valve
Minimum length of pressure spring
38.5 mm (1.516 in)
Shift shaft - sliding plate/shift quadrant clearance
0.40… 0.80 mm (0.0157… 0.0315 in)
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