1986-1987 Honda TRX350 FourTrax 4X4, 1987-1989 TRX350D Foreman 4X4 Service Manual, Page 87Get this manual
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8CYLINDERPISTON SERVICE INFORMATION TROUBLESHOOTING CYLINDER
TOPSECOND OIL
-0 10 mm (0 .004 in) 21 10mm(0.831 in)
Cylinder-to -piston clearance Connecting rod sm