cr250 hotsaw

ok, so im gonna try my skills at making a bikesaw. i just aquired a cr250 engine, and always wanted to build one so im gonna give it a shot. ive done alot of research on this subject, but really didnt find alot of information on where exactly to cut the cases? also about carb setup. i know that im gonna try and have a twin carb set up with two smaller carbs instead of just one big one. but i was just curious if anyone knew where to cut off the transmission at? any and all information would be appreciated.

you only need the crank case flywheel side and part of the drive side intact. for your first time cutting one do it in small chunks and take your time. I would go with a single carb as it will make tuning way easier to accomplish.

would you happen to have any pictures or know where there are some at? would just make things alot easier.

A couple years ago a fellow by the name of Romeo posted a lot of bikesaw builds. Not sure what happened to him?

Here you go!

That's perfect!! Exactly what I was looking for. Thanks.

What year is your engine? The pictures are 1990/91. Case bolt patterns change at 1992.

its an 86 case

The CR cases are a lot different than the TRX cases, besides just the counter balancer.

friggin awesome work

Tried to rep you for just sharing this stuff Dennis and gink595,but got to spread it more first ,Nice work indeed

splitpost said:

Tried to rep you for just sharing this stuff Dennis and gink595,but got to spread it more first ,Nice work indeed

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got'em

PARTSWOODCHUCK said:

got'em

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thanks

Stihlmech said:

its an 86 case

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Study the CR 250 90/91 pictures. They're just like the cases you have. Don't even worry about the TRX stuff. Need any help or advice let me know.

will do, and thanks again ALOT of useful info here on this subject.

PARTSWOODCHUCK said:

A couple years ago a fellow by the name of Romeo posted a lot of bikesaw builds. Not sure what happened to him?

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Stihl around, just a bit busy ALL of the time these days so I post very little.

There are pics for a bunch of saws I built here: http://www.arboristsite.com/saw-building-101/109980-2.htm

But Cahoon pretty much covered what you needed to know, and he has built a few more bikes than I have.

I really enjoyed all of your threads on bikesaws and 2100's etc. Good to know your still around!

Ok. I studied that thread. And nowhere in there does it show an oiler? Maybe I missed it but do y'all have a picture of that? And the tank?

Here's a picture of a billet oil tank on the rightside top handle. I put them on the leftside now, so you have a clear view of your bar and chain while cutting. This is also a gravity feed system with a pitcock for opening and closing. Some use the cylinder water jackets for a tank, and some use pressure from the pipe to feed the oil also. I've tried both and like the tank and gravity feed system the best.

Hey Uncle Dennis why dont you market a kit ya never know ................ the boys could mod there crankcases and just bolt your kit on at least you'll have no competition from the Chinese
I might even buy one and if your real nice to me i might option up and buy a kevlar kit as well ............... food for thought

P.S I could pay in yen if thats OK with you how many yen to the dollar ? or maybe you might accept food stamps ?

McBob.