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Air fuel ratio

bucketofguts

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Do news saws have a 02 sensor to do fuel air ratio? Can you measure the same with a 30 year old saw with a 02 sensor up its pipe? Thank you for your time.

b~
 

redneckhillbilly

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I have seen spark plug crush washer temp sensors, I could see something like that aiding in tuning.

not sure how well an O2 sensor would hold up with the mix oil in the fuel.

I think an oldschool EGT gauge would probably be the best for tuning. all my saws are autotune so it wouldnt help me much
 
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