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I have the same problem with some of my 2 stroke outboard motors, I use lacquer thinner or brake clean spray & compressed air. It works well as long as you get ALL the black deposit out & dry the porcelain well.
Georges B.
-------Original Message-------
Date: 06/13/05 11:12:42
Subject: [FlyRotary] Re: Engine Not Starting
Bob,
I've experienced similar flooding problems with my 20B, before I learned
how to hold my tongue just right to get it to start on the first try.
I've had good luck with removing the plugs and spraying them off with
brake cleaner, blowing out the black junk (removed by the brake
cleaner), and then reinstalling them. I usually only have to "clean"
the leading plugs to be successful. It normally starts right up after
that. I guess the trick here is to use brake cleaner so that you remove
the black deposits. (No, I don't have a favorite brand.)
This probably goes without mentioning, but be careful to keep the
ignition off while purging the excess fuel when cranking without plugs.
One spark and you might get to start the building process all over from
the beginning.
Mark S.
<snip>
I removed the plugs, wiped them off and dried
them, and cranked the engine to blow out all excess fuel. The plugs
were practically new with only a few hours of ground running on them.
They are very clean looking, but with some black around the ceramic
portion deep within the plug. Each plug fired when tested outside of
the engine. These are stock NGK plugs as specified for the engine.
<snip>
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