Popping Spark plugs

[Guest]

Hey on my 80 450 the left side (as you are on it, the only way to be, right?) spark plug keeps giving out on me. I think there is a bit of carbon appearing on that one, but by the time I am looking at them they are covered in gas. Any ideas where to start here? Thanks!

[redliner1973]

Start by checking the usual stuff first, float needlevalve sticking/worn, petcock bad, etc. there are alot of posts on problems similar to yours, look at those also for more ideas. :twisted:

[Anonymous]

Replace the plug, but before you put the new plug in check to make sure that a good strong spark is getting through the plug wire to the plug. Make sure the spark is not arching from the plug wire to the motor.

[Anonymous]

If you have a problem with gas going where it should not be, IE your cylinders, you should check your oil to see if it has any gas in it . If it does you should change your oil first before you even think of starting your engine. You could do major damage to it.

[Anonymous]

Re: Popping Spark plugs

Hey on my 80 450 the left side (as you are on it, the only way to be, right?) spark plug keeps giving out on me. I think there is a bit of carbon appearing on that one, but by the time I am looking at them they are covered in gas. Any ideas where to start here? Thanks!

Check that the output from the coil is good.
I had the same on one cylinder for two years and it turned out to be a weak spark form on coil, replaced coil and all was well.
I spent a fortune on plugs that worked for a few weeks and then just seemed to get wet and not spark

Phil 8O