Sheenut

are you asking about the shark tooth bumper or the one made by Shark Racing?

Sounds like your not getting fuel to that cylander, I would stop running it until you pull the carb and clean it . no fuel to that cylander also means NO OIL. just my 2 cents

sorry to jump on this post so late but my 04 shee came stock with Br10ES, whats up with that shit I changed them last weekend to br8es and it ran 20 deg hotter? My shee is from canada do they put #10 in canada models only?

left side of engine must remove footpeg, gearshifter, black sidecover, & flywheel

i agree the YZ for sure sorry dude but a stock 250 has more hp than a stock shee not to mention the weight and centrificul mass the shee has to turn