Originally Posted by
Greenhornet347
Headgasket?
Compression test will tell you that. Warm up the bike, then tear it down. Do a dry compression test and record your results. Then if any of the cylinders are out of line add ~1tbsp of oil to each cylinder and repeat. If the compression goes up on the affected cylinder then more than likely yeas the headgasket is bad. Though it coudl also be the rings. Which a leak down or blown by test will give you a better indication if it's the rings or headgasket though if the smoke isn't bluish you chould be good. Also the white smoke should be coolant and a lot of times can give off a bit of a sweet smell coming out the exhaust as it burns up.
