Otherwise there might be motor movement, hold your frame top bar with hand hand and shove you motor back and forth AS HARD AS YOU CAN, if it moves AT ALL start there because nothing else down the line will work.
hey man. i didnt notice it before but it DOES move. not much, but enough to be another cause to cause the problem is low rpm until the clutch engage. i didnt notice it before but now that i have the stock muffler on it which is very close to the top frame, i can use one hand and it really does move because its only welded in the bottom and not in the front.
anyways, today i got a 20t sprocket for JS-in and a max torque clutch. the max torque clutch was a little more gentle at first but then same shhhhh..
so yeah i need to get my ratio closer to 9.000 (right now its 7.300) how david had it before and maybe one of those more expensive adj. clutches. either that or the agk solution with a modified max torque clutch, but that was tested on a 99cc predator, not the 212cc:
"Earlier in the article we mentioned some vibration we experienced when the clutch would try to engage. Vibration is not only annoying, but can cause other issues with the bike, so here's the low down.
There are two methods we use to reduce vibration upon clutch engagement. One way is to increase the stall of the clutch. The clutch we sell for the 99cc Predator has wedge shoes with a black spring which provides a 2800 rpm engagement. By installing regular shoes in our Max Torque clutch we get full lock up at 3100 rpm. This really smooths out the engagement and makes the bike so much more enjoyable. However you don't want a clutch with a 3100 rpm stall if you still have the governor in your engine. That would not give you much of a operating rpm range."
not sure if that would be enough for me but i would love it because the clutch is inexpensive and i really would like to avoid spending another 150+ only on the clutch.
so yeah, now also my 10t JS-out sprocket is damaged by the vibrations and i have to order that one too - again. so another 1-2 weeks im stuck with this $#@$#@$....
im also planning to order a 25t JS-in sprocket. i finally found a place where they sell them in one piece like the smaller once without the hub they use for the 22t sprockets. that would be here if anyone was searching for that:
http://www.usabearingsandbelts.com/18m7/sprockets/35-sprockets.html
im extremely frustated and also cut out a piece of flesh of my thumb today, trying to get a sprocket off. the bike is DONE but for those little annoying details i cant use it.
i was able to ride it once today though and for the first time able to pull the clutch full power after i slowly got to 15mph on a longer straight and the vibrations stopped. HOLY MOLY!!!! this is far beyond everything i expected in power. it is absolutely crazy and dangerous so much power on a bike frame haha. this bike will smoke most of the cars out there in terms of acceleration. very impressive! so now back to waiting..