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Thanks for the opinion.
Since my last posting I have been doing a little experimenting. I tried
an oxygen sensor with an egt probe attached. I measured the voltage put
out by the O2 sensor with a digital voltmeter and the temperature
indicated by the egt probe with a standard Westach gauge. I inserted
the O2 sensor/egt probe assy. in the flame from a propane torch to
measure sensitivity of each unit and found that the O2 sensor was very
much more sensitive. When I would vary the airflow to the torch flame
by closing off the aspirator ports in the torch the O2 sensor would
respond immediately even though there was very little variation in the
flame color or egt reading. Im thinking that using this technique in
our two stroke engines would allow us to fine-tune the mixture and make
the most of the admittedly poor fuel economy we have. What are your
thoughts on the subject? I also invite anyone with experience or
knowledge of this technology to comment on the viability of this
technique.

Thanks,
Don Forse


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