1981 yamaha maxim 650

[millermike]

Im having problems with my 1981 yamaha maxim 650. when i start the bike it runs great and as it warms up it start idling higher and higher. Ive tried letting it warm and spraying wd-40 around intakes and elswhere but seems to be no air leak. plugs are burning white any ideals?

[Johnj]

If your plugs are white that means your running lean. Plug chart

[millermike]

thats what i figured just confused why she runs great when cold and bad when warmed up

[HYPERR]

thats what i figured just confused why she runs great when cold and bad when warmed up

When do you turn off the choke?

[millermike]

never even turn choke on

[HYPERR]

never even turn choke on

This bike starts up and idles perfectly when it is cold without the choke despite your assertion that the bike is running lean?

[millermike]

im not a mechanic i just know that when it warms up it wont idle back down and my plugs are white

[Johnj]

It won't idle back down...intake leak.

[millermike]

sprayed around intakes with starting fluid when it warmed up and it didnt idle down or higher