Classic Winnebagos & Vintage RVs

onan 6500nh, cranks and purrs like a kitten----starts without choke, but about 2 min of running the choke comes on an it starts puffing a little black smoke and starts hunting, any ideas i??

The choke comes on AFTER it warms up?

I doubt it is starting without the choke, it is probably starting with the choke on and then as it warms up the choke is not needed but is not shutting off. I didn't look up that genny but it is most likely an electric choke, best case is a loose wire worst case is a burnt out choke. Both repairable.

the choke is compleatly off when it starts and when it warms up the choke comes on 1/2 way

Quote from: boohoo222 on November 03, 2017, 09:12 AM
the choke is compleatly off when it starts and when it warms up the choke comes on 1/2 way

remove the black cap on the choke ... The choke lever is on the wrong side of the spring

i will check that out,,,thanks

X2 what Motorpro said.  That's why I asked for the clarification.