250R motor questons

[Hammerman]

Hey guys first time to this site. I picked up a basket case TRX250 motor, unfortunately it will never go in a quad again. I'm cutting the transmission off and making a competition bike saw out of it. I have some general questions on what year cases I have and if all the years were basically the same between crank and case and what differences there were in the cylinders from year to year. Also I was wondering if the stator and flywheel would be compatible...basically will a CR250 ignition work on these motors? I would appreciate any information you could give me. Thanks

[jar 250r]

lol i want to see this thing rip saw yeah the case r all the same cr ignition will work but have to get adapeter a plate from esr

[jar 250r]

and topends are just about the same the old ones from the atc got a little more of a port job then the newr ones from 87 up

[jar 250r]

and topends are just about the same the old ones from the atc got a little more of a port job then the newr ones from 87 up

looks like you got a newr one from 87 up

[jar 250r]

from 87 up have longer rod, the old style of cylinder is a little more agressive on the porting (atc cylinder) looks like you got a newr clinder and most likly a +4 crank

[Hammerman]

Hey thanks for the answers! I've been reading that a 2001 CR 250 ignition works real well for these. You have any pictures of how the adapter works in the case with the stator?
I play around with saws a little porting them and building pipes and heads for them. Been alot of fun so I thought a bikesaw or quadsaw would be a real cool project. Here is some pics of the heads and pipes I've done.

[Hammerman]

Here is a little Husqvarna that runs on alky nitro.

[goonmx22]

Yes the 2001 is the set-up it will sure rev up good with that smaller flywheel too! The mounting with the adapter plate is pretty straightforward, dang you better sure show us how this thing runs when its done!

[jar 250r]

sorry i dont have a pic on hand my bike is in my budys shop for winter storeage but some one on here will help out on that pic

[jar 250r]

bet you could make one too without any trouble there is a pic of what it looks like on this site some where i know i seen it 100000% sure