yz 250 motor in tri z

[jonolanracin]

I know that with a welder a torch that anything could be made to fit but I was wondering if anyone knows how much fab work it would take to put an 01 yz 250 motor into a tri z frame or is it even possible thanks for any info

[Darius1502]

I've wondered about this for years. I know that the motors up until about '86 or 87 were a direct bolt in. However you have some pipe clearance issues with the powervalve cover on the YZ engine. I bolted my '86 motor into my '86 Z no problem.

However I think by 2001 they changed up the bolt locations on the casing. I am sure it can be figured out. You just need to create some brackets.

Go for it...but the only way to know for sure is to buy a YZ engine and try.

If someone did this then you its probably something you can work around with the two stroke engine:

196614

Also the 01 YZ engine made about 43 to 46 HP. That's way more than a stock Z.

[jonolanracin]

ive got the motorcycle already was just wondering if anyone had tried it yet going to try to measure swingarm and bottom of motor didn't know about top of head clearance

[Darius1502]

Very sweet...can't wait to hear the results! Be sure to post them!!