1999-2004 Honda TRX400EX FourTrax Service Manual, Page 111Get this manual
8CYLINDERPISTON SERVICE INFORMATION TROUBLESHOOTING
CYLINDERPISTON REMOVAL PlSTONlCYLlNDER INSTALLATION
SERVICE INFORMATION
GENERAL
The cylinder and piston can be serviced with the engine installed in the frameTake care not to damage the cylinder wall and pistonDo not damage mating surfaces by using screwdriver when removing the cylinderCamshaft lubricating oil is fed through the oil passage in the cylinderClean the oil passage before installing the cylinder
SPECIFICATIONS
Cylinder
Unit: mm (in)