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fitting exhaust gas probe
Posted: Sat Jun 13, 2015 8:41 pm
by ducksta
Am i right the probe needs to be 100mm from bottom of piston fitting on a vespa t5 revolver exhaust
Re: fitting exhaust gas probe
Posted: Sat Jun 13, 2015 10:52 pm
by rosscla
That's the usual figure quoted, but couple of mm either way shouldn't make much difference.
Re: fitting exhaust gas probe
Posted: Tue Jun 16, 2015 7:12 pm
by hobospeed
I’ve been told the way that a lot of racers choose the position of their probe is to use some cheap BBQ spray paint on the header and go for a fast ride. The spot where the paint starts to burn/blister first is where you want to position your probe as that’s the hottest part of the header.