Originally Posted by BSB67
Maybe I missed it.

What is your cranking cylinder pressure?
What spark plug are you using?


ok, the spark plug is an NGK XR4. I didnt think that was the actual number but looking it up, it actually is, just XR4..also lists as 5858. I cant find a chart that shows what the next colder NGK plugs are.. Also, what other things will happen with going with a colder plug? it wont run too rich will it?

Last edited by mopower440; 01/22/21 12:50 PM.