02 650 being difficult

Hi!

My Husaberg 650 02 model is starting to annoy me...

Off with the head, disassembled all the valves and cleaned everything. Grinded valves and seat, mounted it back together and filled the ports with liquid to make sure that there was no leak. Assembled the head togheter with new seals and a new head gasket. Torqued the head bolts first to 40nm then to 50. Mounted a brand new 08' camshaft with the better ADC and spring. New bearings and also new sprocket on the cam. New cam chain and a new modified tensioner blade.

Also got the stronger spring on the sprauge and shims on the starter clutch. A bigger and better Yamaha R1 starter motor. A rewinded Sem stator and new fuel valve on the Dellorto. All the parts in the carburator got a good session in the ultrasonic whasing machine to make all the parts look new and shiny. Adjusted the valves on the right tdc with the "1/6 turn" method. NGK dcpr8iex spark plug.

I can still not get it firing with the kickstarter, and I would say that it is still to much compression even with the better cam and adc. Tried to explore with the valve adjustment on the exhaust valves. In my eyes, the less clearence on the exhaust the more lift on the auto decomp.

And when using the electric starter the engine turns over maybe one time, then the sprauge starts to spin. Release the button and try again the same happend, one turnover and the sprauge starts slipping.

To make my day complete, when i changed new plugcap and wire to the coil, the little screw broke off holding the wire on inside the coil... Will try to solder on a new screw :/

Sorry for the very long post, but starting to lose my patient with this bike now. Would appreciate some more help from you to get this bike alive again.

Yes, did get the adc spring right i think. Watched Taffys video on youtube and i think it has the strength needed. I have concluded that the starter sprauge is bad, since it's slipping even when the manual decomp pulled in.

I have mounted the stronger sprauge spring but i noticed some small flat spots on the sprauge. Think its a bad piece of engineering everything by this sprauge starter clutch assembly... Is it possible to change or improve the assembly to something better and stronger?

Plug is wet, blue spark. But i noticed that you need to turn the engine over very fast to get a spark at all. I dont think i get that speed with the sparkplug in.

I did put in a new smaller pilot jet, think it was three or four mm smaller. Will check tomorrow. Will also check the ignition timing tomorrow and report back as fast as i can.

My real name is Andreas btw

Okey, thanks for answer

I wasn't really motivated to split the engine on this bike... Is it possible to know which gearbox it has looking at the engine serial number?
I will try to research and try to find out if i can put in a different type of starter clutch mechanism of som sort.

Thanks for answers!
Had a little time today so i checked the sprauge. It has some small flat spots on the rollers, and i have read on this site this will result in a slipping sprauge? I have the stronger spring mounted btw. And as you talk about the torque limiter, I have put washers in between and tested that its stronger than 45nm(?).

Plug is wet after a few kicks, no throttle and no choke. It has a nice blue spark but i cant really hear it ignite. And as you tell, it could properly be my kicking technique. Any good tips on that? Will go over my carburator tomorrow to see which jets that are in there, but i now it is a couple of sizes smaller than original.