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Exhaust gas analyser

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JezzaPeach:
Hi all
Probably wishful thinking!.....Does anyone know if it would be possible to use an exhaust gas analyser, like they use for car MOTs, to adjust idle mixture, and if so, what readings would look like?

Rob62:
It could be done but the best way to analyse the gasses is to put it on a dyno, preferably somebody you know and trust and is into his classic bikes. You need to analyse the gasses at various engine loads and speeds to get it right... I recently had one of my classic 2 strokes on a dyno, the level of info and setup that can be achieved is amazing... there’s no way you could match it with traditional tuning methods. Fortunately the dyno belonged to a good friend of mine who specialises in setting up classic 2 strokes. I was never keen on the idea until i finally bit the bullet but now I am a massive convert.

JezzaPeach:
Many thanks Rob. I may know of somewhere locally.

SteveW:
I read something years ago about using an old Lambda sensor to do this, basically the output voltage of the sensor is proportional to the mixture.

JezzaPeach:
Thanks Steve, I may have a tinker to see if it works on the pipe end. Wheeler dealers retro fitted one to a classic Honda car which partly prompted me wondering!

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