White Smoke from exhaust

[Donut]

Hello all,

Finally got my 79 550L painted and put back together. Its running a bit rough and blowing white smoke from the right exhaust when started with the choke. It doesn't constantly blow smoke, just mainly after started and on short trips. I am a rookie and don't think it oil burning, doesn't smell like oil burning either. Any Ideas, solutions.

Thanks
David

[LW_Icarus]

blue is oil burning, black is too much fuel, and white is water burning.

in other words, I dont know. is it parked somewhere that it would collect alot of moisture? on an engine with a water jacket white invariably means a breach in the cooling system letting coolant into the combustion chamber.

how much smoke are we talking about? is it wispy, or billowing?

[redliner1973]

White 'smoke' could also be unburned fuel, if it is not igniting at all, your sound of running rough, and 'when the choke is on" kinda points me that direction. pull the plugs and tell us exactly what you see on them.

[Donut]

I'm leaning to the unburnt fuel also after speaking with a friend. What should the plugs look like if this is the problem and what could be the cause?

Thanks
David

[Donut]

Pulled one plug and it looked good, tan and greyish white in color. Checked it with the plug description in my haynes manual. Bike runs good and seems to have decent power when above 3500 rpms, below that it sputters, not terribly but noticeably and idles high when hot.

Thanks for any suggestions.
david