1988-1994 Honda TRX300 Fourtrax, 1988, 1990-1994 TRX300FW Fourtrax Service Manual, Page 158Get this manual
CRANKCASECRANKSHAFTTRANSMISSION INSPECTION
Set the crankshaft in stand or V-blocks and read the runout using dial indicators at the and points as shown SERVICE LIMIT: 0.05 mm (0.002 in)
Measure the side clearance between the connecting rod big end and the crankshaft flyweight with feeler gaugeSERVICE LIMIT: 0.80 mm (0.031 in)