Spark plub gap for revtech engine 100cid

It depends on the spark plugs that have been used. Some are pre gapped, some have three preset side electrodes around the edge. Gapping spark plugs is not as critical as the old days due to modern CDI ignition systems which give a much larger spark and huge improvements in spark plug technology.

https://www.google.com/search?q=1993+Ford+Ranger+4.0+spark+plugs

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You need the plug make and type. Different plugs have different gaps and some have preset gaps.

Google
(make of plug), (make model vehicle - [engine])

Also YOUR question needs

year make model (in your case, of the engine if out of another vehicle.)

In general spark plugs are usually all the same on an engine regardless of how many per cylinder. If this is the 100cc Revtech Motorcycle engine it will have ONE spark plug on each cylinder. What did you mean by a "compression plug"?

My info says .045 gap
Different plug manufacturers may have different specs. I try to use plugs that were original on vehicle. Just my opinion.

Go to any auto parts store and bring the spark plug with you, ask for a spark plug well repair kit for that plug size.

Hello Josh,
You will find the answer here:
1993 Ford F350 Spark Plug
BTW it's gap is .044"

Good Luck
Rich Lilja

You did not mention the engine size, but under the hood there should be an emission's decal. The spark plug gap is listed on this decal. If not, let me know the engine size, and I will forward the specs.

for the 1.6 liter engine use a gap of 0.8

your plug gap is .044 it also should be on your engine id tag under the hood. and next time you buy spark plugs ask sales person, they will gladly tell you.just some sources for you to know.