Hey, went for first ride after putting the bike back together from changing valve shim and flywheel and new chain and sprockets.
Seems to idle well and ride well but when i give it to her through the gears above 5000rpm it surges and i have to back right off on the throttle.
I have checked to make sure theres no kinks in hoses and it does it regardless on petcock position so its not that.
Any ideas?

Surging is usually a lean fuel condition.

Quote from: damo2211 on July 01, 2015, 08:16:40 PM
Hey, went for first ride after putting the bike back together from changing valve shim and flywheel and new chain and sprockets.
Seems to idle well and ride well but when i give it to her through the gears above 5000rpm it surges and i have to back right off on the throttle.
I have checked to make sure theres no kinks in hoses and it does it regardless on petcock position so its not that.
Any ideas?

Also check that the air filter is not restricted. It may be too RICH, not too lean. I have had EXACTLY this problem and it was a blocked air filter that looked OK.

Macka

Thanks guys, problem solved.
fuel lines didn't seem right so i replaced them and opened the mixture screws underneath half a turn, run sweet now.
Just not sure about 14 tooth front sprocket, great acceleration but crap on hwy now.

Quote from: damo2211 on July 02, 2015, 01:09:05 AM
Thanks guys, problem solved.
fuel lines didn't seem right so i replaced them and opened the mixture screws underneath half a turn, run sweet now.
Just not sure about 14 tooth front sprocket, great acceleration but crap on hwy now.

Glad that it is now fixed.
I run an 18t front sprocket and 37T rear. Take off is a little slower but it is great on the freeways. 

Macka

Quote from: damo2211 on July 01, 2015, 08:16:40 PM
Hey, went for first ride after putting the bike back together from changing valve shim and flywheel and new chain and sprockets.

New shim its not one of em fancy new Chinese special breakaway designs is it ?
Yea works great for 500 miles, then kabloooyey ... you need a new motor.
Cool.
Buddha.