Smoke on the exhaust pipe.

[GZ250]

Recently I saw very little smoke at the end of exhaust. When I rubbed the finger on it it is not very think or dark but certainly black. Cannot figure out the reason? Bike is running ok and I dont see any smoke while idle or driving.

Any idea? Thanks

[Easy Rider]

Any idea? Thanks

I think we need to change your handle to "Mr. Paranoid". :lol:

The longer you ride, the more that black stuff will accumulate at the end of the tailpipe.
It's normal. Some engines leave more; some less. Check your other vehicles and you will probably find the same thing.........to some degree.

[Water Warrior 2]

What Easy Rider said. Don't worry, be happy.