MicroSquirt.com read only forum (Jan.15,2018)

Hi All

I think this might be a simple question?

I have the front and rear cyl of my V-twin running different exhaust temps.

The front at idle is 250 deg C
The rear at idle is 200 deg C

Does this mean that the front is running lean or rich?

I only an WB O2 in the rear pipe and it is stable at about 13:1 AFR at Idle

Thanks

Maybe somebody here will know, but I thought EGT peaked at stoich, and fell either side of it, in normal running conditions.

PS I have seen if it gets too hot aka 600 degC two stroke exhaust when you're going well lean, and detonation is just around the corner.

Ignition timing will also affect EGT.

Jean