250-500cc WR300 vs GasGas EC300

Check the power valve. Mine little black connector rod broke and it made all the difference in the world. $5 fix.

Powervalve is in place and seems to be operational. It's a heavy spring, but when I give bike some gas, I can see lever is moving up. I will post pic and video later.

One other thing, it seems I have flywheel weight installed. Is it slowing the bike down that much?

http://www.steahlyoffroad.com/husqv...-10-husqvarna-motorcycle-flywheel-weight.html

remove it and report back

Tried, broke my impact wrench...also, don't have original nut. Called for replacement so I can have it just in case.

So I cleaned up Powervalve and action became much smoother, also leaned out Lectron. Short ride told me that things were much better. Will try to ride more soon

Believe it or not you can put a rope down your cylinder to lock up motor while removing flywheel. Sometimes they get stuck and you hafta pull hard tho.