Just thought this would be a cool new topic. If there is already one in existence please let me know so I can delete this one, or a mod can do it. As for me I finished my under tail project and rode the crap out of it.
Link to the valve?Theory is the valve allows the crankcase to exhale out as the pistons descend then prevents air from refilling when the pistons rise. Got this one on Ebay for about $43 delivered which is WAY cheaper than others I've seen offered. It's actually for a Harley! So now my bike has something in common with all the Bad Bikers out there.
The valve actually DID work well! Only change was the valve and the idle speed increased about 200 rpms...which I slowed back down by leaning the idle mixture. And I swear...the bike runs a little better with the valve in place. Dyno testing (not on my bike) has proved this type thing to be worth upwards of 4 HP on the 1K's...which is pretty cheap horsies. I'd mentioned this on another thread, just wanted to again here in case someone who might be interested in something like this missed the other thread.