yamaha

[zukifish]

I heard that a yz 490 engine is not too hard to put in a tri z frame. Are those engines only air cooled? I looked on ebay for them and I only saw air cooled. Is there any other engine that is water cooled and bigger than 250 cc's? I just got a tri z and love putting bigger engines in a trike.

[MTS]

it can fit, wouldnt suggest it they only peak 50 odd horsepower air cool'd 4 spd, for as much of a pain in the ass it would be to fit it, you could build a YZ 250 motor for it that makes double the stock power of the tri-z motor.