2003 Polaris ATV Trail Boss 330 Factory Service Manual, Page 61Get this manual

2003 Polaris ATV Trail Boss 330 Factory Service Manual, Page 61

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CYLINDER HEAD WARPAGE

Valve Spring Free Length

Coil Fatigue Squareness

Ill.2 Valve Spring Length: Std: 1.673I (42.5 mm) Squareness: .075I (1.9 mm)

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