[MWDG3]

Honda newb here with a smokin deal of a 97 4x4. We found the cylinder scored so I'm looking for a new cylinder and top end kit.

Model # is TRX400FW. Rocky Mountain has the Wiseco top kit for that model. It's difficult to find a cylinder. Is the 400EX cylinder different?

Tomorrow I'll find out what a new sleeve will cost. Wrist pin and bottom end look serviceable. And advice and tips are greatly appreciated.

 

[mac102004]

400EX is completely different.

95-03 TRX400FW will work.

OR

98-04 Foreman 450 will work for an extra 33cc. (big bore kit). Use the 400's head for more compression.

 

[MWDG3]

Any of the TRX450's? FW cylinders are hard to nail down. Looks like models ES S FE FM are available.

 

[MWDG3]

Thanks for the help BTW.

 

[mac102004]

ES/S/FM/FE are all the same as far as the top end of the motor.