Yep, havent posted in a while. Buddy of mine didn't tighten his chain on a regular basis. he's got a 2005 Polaris Trailblazer 250...... I guess the chain broke and bound up at the gear housing. The housing broke and all the gear oil came pouring out. I guess it still runs....and it's a little beat, but I wanna buy it for parts....but if I can fig it, I will.
I need help. it looks like it was just the outer casing that broke. Looks like a gasket, some gear oil, another chain, and a gear housing cover....Is that it????

 

I had a hole in the crankcase of a 750 motorcycle the size of a quarter and jb weld fixed it.

 

good ole jb weld. works like new. lol

 

I replaced more cases than I want to remember. Customers would only want to replace the right case side that broken(which is understandable), but seems like I had to modify every new right case side because when I would get em together they wouldn't shift right or not at all! When you replace non matching cases this is to be expected.Usually had to burr out where the shift fork shafts inserted in case.Seems like all mine weren't small cracks,just big hunks of metal torn out when they tore em up. But at least its not like KTM or several other makers where you have to buy complete cases. OPT

 

I have seen this happen a few times. Jb weld is not going to work on this one. Needs new case.

 

I've seen it happen too. I seen it happen twice on a particular 425 magnum. Didn't Polaris eventually put a guard around the sprocket so that a thrown chain was less likely to bust a hole in the case?

 

YEP around the sprocket on the case,but had some that the chain broke the case behind and above sprocket! OPT

 

so, guys I can get this for 150$. I think just in parts alone it's worth it. I think I wanna get another trans and slap it in. How involved is it.......any chance a tranny from a trailblazer400 or trailboss will work??

 

Just replace the case and go less than $300 fix and no more than 4hrs work to change

 

C'mon Man!! just got finished rippin the trans out.....frickin frame is cracked right near the swing arm bolt. Now I gotta pack it up and take it to shop to have it welded. I guess That's why the *** end felt so lose....Guess I'll do the swing arm bushing too...(SIGH)