fouled plug

[the fat kid]

how often does it really happen in a four stroke, i ride an 04 ltz and i have a friend that everytime someting even idles a lil weird hes like oh its a fouled plug, so how often does that even happen i thought it was more of a 2 stroke problem.

[400eXr1d3rZ]

It shouldn't happen often, it's nothing like a two stroke...if it's idleing weird it probably has a jetting problem or it's just spark-knock.

[the fat kid]

not often like almost never, idk would water in the motor cause a fouled plug?

[GPracer2500]

A four stroke that's running right will basically never foul a plug. If oil is leaking into your combustion chamber or the jetting is way too rich then it could happen. But otherwise it will essentially never happen. You can wear a plug out over time--but it takes a long time and that's a different thing then fouling.

Sounds like your friend is using "Oh, the plug is fouled" as a catch-all for when he doesn't have any idea what's actually wrong [shrug].

[the fat kid]

That last statement is exactly what it is, i just wondered how often it actually happens, cause he drives me nuts with it, idk so even if were riding in some watery spots,itd be pretty hard to foul. like i said ive never heard of it happening outside of a 2 stroke, and a boat which is a 2 stroke.