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BR8ES spark plug gap

by Mike Kopacki in General Tech Discussion 11 years ago

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Re: BR8ES spark plug gap

by Mike Kopacki » 11 years ago

Mike Kopacki

37 62 11

Cool, thanks guys.

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Re: BR8ES spark plug gap

by Mike Kopacki » 11 years ago

Mike Kopacki

37 62 11

Most places say the gap on the BR8ES is .020".

But Aero Propulsion Technologies, a Rotax service center, says it can be .016 to .020, and the "Optimal: .018"

So the question is, who's right? I can set them to either one.

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Re: BR8ES spark plug gap

by bill martin » 11 years ago

bill martin

10 757 0

Mike,

They're all right.

For easier starts in cold weather use the .016. For everything else, use .018. Going to the bigger gap is OK if your plugs are clean and you are getting a good strong spark.

With plug gaps, smaller is safer. Too much gap with a dirty plug or weak mag and you get no spark.

If you set a plug at .018 and run it a long time, you might even burn it out to .020.

I'll throw one more monkey wrench in the works. If I set a plug at .018 and you set a plug at .018, I'd just about guarantee that they wont be the same, but they'll both be within the max. and min. limits.

Use the middle figure and you'll be fine.

Bill.

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Re: BR8ES spark plug gap

by Mike Kopacki » 11 years ago

Mike Kopacki

37 62 11

Thanks again.

I'm going to have to add you and Roger to my Christmas card list.... :)

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