kidd88
New member
I just picked a sweet ET250 except it was locked up. I pulled the head off and used sea foam and WD40. I got if free. Its got good spark and good compression. Im just not sure what torque spec is for the head? appreciate any help.
I see you haven't gotten any help yet. I don't know about my Yamaha but both my 80's era Arctic Cats say 12ft/lbs first time around and then up to 18ft/lbs for the second round of tightening. That's it. They don't require a lot. Like I said though - those are arctic cats and I could be way off in the Yamaha world. I'd problably call a dealer and speak to a mechanic.
go till you hear your elbo click....
sandmanmike1
New member
Marvel Mystery Oil works wonders for freeing up locked up stuff as well. The decompression switch hangs up on those too. You want a parts sled cheap I want to unload it fast. It could be running in a few hours with the right guy messing with it. Has new belt and new hyfax. I was in the process of converting it to use a mikuni roundslide and had it running just need to fine tune it.