72 250 Cr Chain?

Hey guys, I just picked up a nice "barn find" bike that had been in storage for the last 30 years... it is complete excepting for the chain. the parts manual calls for a 5/8 x 1/4 chain which seems to translate to a 520 chain. I tried one I ordered for another bike and it seems to fit the rear sprocket just fine but it is too wide to make it through the roller / guide block. do I need something special for this bike? I don't really want to hack it up if I don't have to.

If you ordered a ring type chain (O ring or X ring) they are too wide. I learned the expensive way too. Have a nice X ring chain waiting for a new project. Just get a good non o ring chain and it will work fine.

ok thanks.. I did find a narrow x-ring chain from DID that sounds like it will work. All except the price! yow!

Try this guy's Ebay store. You likely need a non O ring 520 X however many links chain. For example 520 X 110. I ordered a heavy-duty version for my '72 WR 450. Haven't ridden on it much, but it seems to work fine and cost about 30 bucks.

http://stores.ebay.com/PERFORMANCE-POWERSPORTS-DIST/_i.html?_nkw=520 chain&_sid=49069874

John LeFevre at http://vintagehusqvarna.com/ also should have the right chain if you don't want to mess around. His parts prices - including for chains - are very reasonable and he can tell you exactly what you need.

Make sure you order a few more links than you need. Also, you may well know this (I didn't, so will share), you can cut the chain down to size with a grinding wheel to remove the nub at the end of a link and a punch to knock it out. When searching for chain, one store told me I needed an expensive tool to do the job, but this isn't the case.

Good luck with your barn find!

Thanks! I ordered a standard 520 chain today with 120 links. I'll cut it to fit and then we'll see how bad the piston is frozen. I can't wait to go though the gears on this awesome machine!!