A little spark plug advice? - Yamaha Raptor Forum
 
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post #1 of 1 (permalink) Old 05-05-2019, 09:01 AM Thread Starter
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Hey guys, I know spark plug issues are common here and I've searched through quite a few other threads but none seem to fully address what I'm looking for.

Is the a correct process to go through before trying to read your spark plug for being lean/rich?

I changed spark plugs recently and when I pulled my old one out, it looked lean. But I've read bits and pieces where guys say you need to run the bike for a certain amount of time, get it hot, shut the engine off, then pull the spark plug before you try reading it.

I'll post pictures of my old spark plug. I had taken it on a handful of good, hard rides with that plug and at the time, the quad only had a Big 3 kit installed. Kit and tune came from Cuervo racing.

I dont think I have an hour of ride time on the new spark plug so trying to read it wont be useful I suppose?

Long story short, is there a correct procedure to run through before trying to read the spark plug?A little spark plug advice?-20190413_143259_1557064635691.jpg
A little spark plug advice?-20190413_143303_1557064731298.jpgA little spark plug advice?-20190413_143039_1557064788442.jpg

Last edited by justdoit704; 05-05-2019 at 10:47 AM.
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