Hello,

I recently changed the valve seals on the bike and a stainles stail exhaust. So i adjusted the air/fuel mixture on the carbs a bit. But did 650 k‘s friday and when i opened the trottle it gave black smoke at the exhaust. And it needed about 450 ml of oil for these 650 k‘s. Which is a bit too much as i thought.
Does anyone have an idea what the problem could be? Any help is welcome!
On Saturday I worked on the bike with a mekanic here in Bangkok, as he‘s also a friend. He tels me that the black smoke is because of too much fuel. So i moved the clip from the carb‘s one groove up so the needle comes more down and less fuel comes through. When i started the bike,there was still black smoke. He told me cause of the black carbon that‘s still in the exhaust(which could be true i guess).
He says the oil consumption is normal in these hot conditions. Although i have my doubts about that part. As i never used so much oil before.
Can anyone tell me which symptones there would be if the pistonrings where gone? I checked the airfilter-case and there was no excesive oil in there,so that should be an ok symptone i thought.Some people suggested to check the oil level in the carter as well. If there's too much oil,they say it could indicate a problem with the oilpump. But can‘t try it out at the moment as i‘m still in the city. I ‘ll check that part if i take of from here further to the south again.
I also took out the sparkplug and it was a bit gray but wasn't oily at all.Wich is again a good sign concerning the pistonrings,no?
Thank you!

Cheers,Bossit!!