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Date: Tue, 08 Feb 2000 06:07:00
Subject: Re: Resurrecting a California Puch Moped
From: Kiroja
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> Thanks What SPLIT FIRE number is correct and what is "stabilizer",is
> there a brand name for that. 93 oct not a problem.Will it melt the
> engine?

Don't be afraid of that sort of things happening.
95 oct is the lowest you can get here. 98 is superplus.
At any rate, I've met people riding their peds on pure alcohol on the
one hand and petroleum on the other. Peds can take more then you'd
think.
Anyway, to easiest way to increase speed would be enlarging the inled
and the exhaust ports.
Don't overdo it tho'.
Inled vile 2 mm down max, exhaust 2 mm up max. Sideways it depends on
where the piston ring openings are.
Also flattening the cilinder head works perfect. Fine sandpaper taped to
a glassplate, move the head in a circular motion over it. This will
prevent it from becoming uneven. Same goes here, don't overdo it. Or the
piston will hit the sparkplug. Also if it increases the compression too
much there's a chance of selfcombustion of the fuel befor the spark.
Furthermore if you have the means, make a third fuelway in the cilinder,
it doesn't have to be big, but it gives a significant boost. Make sure
the entrance angle is the same as the original ones.
Ofcourse you can also just buy a bigger carburetor, and fast exhaust
pipe.
Oh and needless to say, but don't forget to remove any speedcontrolers
befor you go at it.

Robbert



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