1988-1994 Honda TRX300 Fourtrax, 1988, 1990-1994 TRX300FW Fourtrax Service Manual, Page 158Get this manual
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CRANKCASECRANKSHAFTTRANSMISSION INSPECTION
Measure the radial clearance at the connecting rod big end, at two points in the directions indicated by the arrowsSERVICE LIMIT: 0.05 mm (0.002