2007-2009 Honda TRX300EX TRX300X service manual, Page 140Get this manual
CYLINDERPISTON
SERVICE INFORMATION
GENERAL
This section covers maintenance of cylinder and piston The cylinder and piston can be serviced with the engine installed in the frame Take care not to damage the cylinder wall and piston Be ca reful not to damage the mating surfaces when removing the cylinder When disassembling, mark and store the disassembled parts to ensure that they are reinstalled in their original locations
SPECIFICATIONS
I.DOut-of-round Taper Warpage Piston O.Dat 20 (O .S) from bottom Piston, piston pin, Piston pin hole I.Dpiston ring Piston pin O.DPiston-to-piston pin clearance Piston ring end Top gap Second Oil (side rail) Piston ring-to-ring Top groove clearance Second Cylinder-to-piston clearance Connecting rod small end I.DConnecting rod-to -piston pin clearance
Cylinder
STANDARD 74.0074.01 (2.9132.914)
73.96573.9S5 (2 .91202.912S) 17.00217.00S (0.66940.6696) 16.99417.000 (0.66910.6693) 0.0020.014 (0 .00010.0006) 0.150.30 (0.0060.012) 0.300.45 (0.012O.OlS) 0.200.70 (O.OOS0.02S) 0.0300.060 (0.00120.0024) 0.0150.045 (0.0006O.OOlS) 0.0150.045 (0.0006O.OOlS) 17.016-17.034 (0.66990.6706) 0.D160.040 (0.00060.0016)