Originally Posted by Deepc
05.5 950A w/ 18,000. I've been running into the same issue. I check my oil once every two weeks or so when commuting around town. Lately I find the oil level at 1/4 from max regardless if I have filled to 1/2 from max a few days before. Balance shaft seal? Front carb throat shows little to no residue. I do get a little smoke out of the exhaust at startup but it goes away after 10 seconds or so. Any thoughts?
As for the smoke on startup: I also have it (white smoke for me), and I believe it's water deposit (building up overnight, when the exhaust is cooling) in the exhaust turning into steam.
As for the oil: As I've read, if the balancer shaft seal is leaking, it consumes way more oil than 1/2->1/4 on the dipstick in a few days, and the air filter should be really oily beneath the crank vent. So I guess your bike is behaving normaly.. Mine would consume roughly about 0.5-1l oil / 1k miles.. This is when riding steady @ highway speeds.. Interestingly it doesn't consome any oil at slower speeds..