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pcn1 09-Dec-2004 23:34

Co2
 
I am about to have a go at tuning my st2. Having read up on the fuel injection system on Sigma's web site and FIM's I have borrowed a vacuum gauge set and a Co2 tester. What is the correct Co2 setting when the bikes left the factory ?
Any tip's before I get going ?

Thanks

rockhopper 09-Dec-2004 23:39

You need to be able to measure CO and Lambda as well to do it right.

nelly 09-Dec-2004 23:40

It's the CO you need to measure, not Co2. Carbon monoxide vs. Carbon Dioxide.
The setting from the factory is a very "green" <1.5%, for best performance you'll want about 4% - 4.5%.
Make sure you measure from the take off points in the header pipes, as taking a sample from the end cans, from experience, tends to cloud the readings.


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