low speed carb issue

[Guest]

I think my carbs are set a little rich on the low speed circuit. I pulled my plugs and they are fouled out around the outside rim of the plug while the electrode is fine. I have a hard time starting the bike when cold. Takes a while for it to warm up and take throttle. Bike in question is a 1979 GS850G. Carbs are clean and air box has recenlty been seal as well as valves set. Could it be a mixture screw isssue?

[tkent02]

I think my carbs are set a little rich on the low speed circuit. I pulled my plugs and they are fouled out around the outside rim of the plug while the electrode is fine. I have a hard time starting the bike when cold. Takes a while for it to warm up and take throttle.

Too rich would make it easy to start cold, help it take throttle right away.

Sounds lean.