Dieseling/fast idle solenoid

[lippy]

Originally Posted by blykins

I'd have to see the plugs but a hotter plug has more porcelain exposed which is a hot spot for fuel to hit.

You can try a 3910 plug and I'd like to see how much transfer slot you have exposed at 1200 rpm.

No problem for me to try AR 3910 plugs. I've been told to use the factory gap for AR plugs, do you agree?

For the transfer slot, I just pulled the carb off again and was planning on setting it square and getting the faster idle using the solenoid. This way, when the solenoid is disengaged I will go back to a square transfer slot setting (I think the idle is fairly low there). In the past, I started with square transfer slots and then changed the primary and secondary butterfly positions equally to get the desired idle speed, letting the transfer slots fall where they do. Should I be setting this differently?

Separately, thanks for the tip Chas. I'm going to try the colder plugs but if I still get run on I'll try it.