I just finished my 1986 TRX250R. When I got it the sprocket side of the case had some damage from the chain popping off. So I rode it for a month and then the piston cracked and the sleeve got damaged. So I split the case and checked the whole bottom end out. The water pump was bad also, so I replaced the whole water pump and gaskets. Bought a brand new left side case, and bolted it all back up. So that took care of the bottom end, and now on to the top end. The crank was all good (recently replaced by old owner), So then one of my friends had a 1989 CR250R Paul Turner Racing cylinder convert for a TRX250R so I bought it from him and then ordered a Wiseco top end kit for it. I just got it all together and it is running great. I know it isn't a Raptor but it was a beast in its day and still a legend.Sorry for the long post just excited.:banana:
I've thought for a long time that if I ever stumble across one for cheap, I'd pick it up and do a 330 power valve motor for it. Just gotta love the 250R.
thats a nice 250r you got there. they were the sh*t back in the day.... even if i was born back then id still rather have a banshee tho :thumb: im true to yamaha, can't break that bond
Thanks for all the replys, and I was waiting for some one to catch those tires.LOL I love my raptor, but its fun to have a 2-stroke to ride and tinker with when your bored. The raptors are too damn reliable so I need something to tinker with.:Hilarious:
Super long shot..... Looking for this EXACT cylinder for a ATC250R build I am embarking on. Had one of these in the late 80's that I used on an ATC250R for the Nationals/Mickey Thompson races.
If anyone can help me find this bike/cylinder will be highly indebted!
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Modded Raptors Forum
239.1K posts
13.2K members
Since 2008
A forum community dedicated to Yamaha Raptor ATV owners and enthusiasts. Come join the discussion about troubleshooting, classifieds, performance, modifications, maintenance, and more! Share more about your favorite model including the: Yamaha Raptor 700, Raptor 660, Raptor 350, Raptor 250 as well as the smaller Raptor 50, 80 and 90.