Tracy, During the time I worked for Kawasaki, (early 70s to 80s) there was a tremendous change in
the style of ignitions used on two cycles. The real culprit was sealing the
engines and making  them pump better, but that is another story.

snips.....

 Bill Jepson

Bill, Besides the ignition systems, I would also be interested in the sealing aspects of those two-cycle
engines at Kawasaki. "The other story" which, as you mentioned, affects ignition as well.

Do you know the percentage of leakage passing by between the three areas of the ring face, the ring seat
in the piston groove and at the ring gap?
The leakage rates are probably different at high speed and high load versus high speed and low load and
leakage at low speed and load.

Any information you could pass on would be greatly appreciated. I am working on an experimental engine
and encounter ignition problems in part caused by poor sealing and too much oil to better the seal,
which impairs ignition as well.

Regards Rolf Pfeiffer, rpfeiffer@rogers.com

 
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