1981 sr250 cam shaft

C

cack

New Member
need a new cam shaft for my sr250, and cant seem to find one anywhere... if anybody is able to let one go let me know.
 
CMSNL says they have some, but they're not cheap:
http://www.cmsnl.com/yamaha-sr250th-1981_model8812/partslist/A-10.html#results

This thread on thumpertalk suggests you could try looking for an XT250 or SR250 camshaft.
http://www.thumpertalk.com/topic/517599-xt250sr250-camshaft/

I checked the parts numbers on CMSNL and they are a match.
http://www.cmsnl.com/yamaha-sr250th-1981_model8812/camshaft-assembly-1-3y1_9999901444/
http://www.cmsnl.com/yamaha-xt250h-dual-purpose-1981_model8835/camshaft-assembly-1-3y1_9999901444/

Web Cams looks like they have something for the XT250 as well:
http://www.webcamshafts.com/index_blank.html?pages/motorcycle/yamaha/yamaha_xt_250_%2880-83%29_sohc_2v.html
 
thanks for the info! hoping to find one a bit cheaper as the whole bike isn't even worth as much as some of the cam's i've found so far
 
checkpointGnarly said:
thanks for the info! hoping to find one a bit cheaper as the whole bike isn't even worth as much as some of the cam's i've found so far
Click to expand...

I hear you. It's the only downside to not having an extremely popular vintage bike. Good luck!
 
Early 80's (81 to 83 I think) XT250 & TT250 cams will fit. I have an 81 TT250 cam in mine.

I do have one (SR250) cam from a 2002 model. But there is some rust on the lobes, so I'm not sure you'd want it
 
Hi guys, just wondering if there are any other alternatives from purchasing either the new stock sr250 cams (around $500 once shipped to Aus) or the XT250 & TT250 cams which come in at a similar price? Any other heads that match these engines/ other engine options? Any help would be greatly appreciated! Thank you
 
Is that this cam cosworth? http://www.ebay.com/itm/Yamaha-87-04-Warrior-350-HotCams-Hot-Cams-Stage-1-Cam-Camshaft-/322254162510
 
You bet. Slides right in. Niche sells them for cheap too.

I do recommend drilling the oil feed hole in the head. You fit a drill bit down the hole by removing the bolt.

These motors have nearly zero pressure, but rely on flow. There is a pin in the crank to force more oil into the head, and now the restriction is the feed hole.
 
http://partdiscounter.com/shop-by-make/yamaha/yamaha-350-camshaft.html

Also, you're probably going to want to replace the rockers. Once you get them out you may be aghast at how worn they are. Get more oil to that head.
 
Hi Smith. Did u find the supplier for cam shaft. Im in Sydney and also looking for cheaper price as well compare to Yamaha dealer. Thanks
 
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