spark plug gap makes a big differnenc.....
- Thread starter borntofli
- Start date
I'm glad it turned out to be something simple and easily fixed.
Plus it's a good reminder to all of us to not forget the simple things.
Plus it's a good reminder to all of us to not forget the simple things.
i did some experimenting a while back. gapped as low as .010 and the bike stil ran, but barely.
went as high as .050 and it still ran. barely.
between .020 and .040 there was no real difference.
optimum seems to be .025-.030.
stock 66cc.
went as high as .050 and it still ran. barely.
between .020 and .040 there was no real difference.
optimum seems to be .025-.030.
stock 66cc.
I agree, and further I recommend not making the gap any more than this because it puts demands on the magneto coil that will shorten it's live.
Too much gap when running a stock magneto raises the current draw enough to burn up the magneto coil at sustained high speed running.
Now I run about 0.025" gap with no problems.
I got to thinking about how I always eyeball my plug gaps and decided to check all my junk to see where my eye was.
Four engines, four plugs between .020 and .030!
Guess doing it long enough gives decent repeatability.
(I do still have a plug gapper though I hardly ever use it.)
Four engines, four plugs between .020 and .030!
Guess doing it long enough gives decent repeatability.
(I do still have a plug gapper though I hardly ever use it.)
Well, I gapped my plug out to .025 and it seems to run a little better now. Still have the stock Chinese junker. NGK next week. The 4-stroking is not as bad now. A bit more power than before. Not a whole lot, but noticeable. Again, she's still in the break-in stage. Time will tell.
