Hi

,
Here I am again with this obsession of turning my pilotscrews like they should be.
For that purpose I bought a relatively cheap CO-meter : "
GUNSON DIGITAL GASANALYSER"Once calibrated it seems to work, because I checked with an expensive 4 or 5-gasanalyser from a garage, and the readings were +/- the same, so for the few times I shall need that meter it will be good enough.
Now it comes: I made an extension tube and drilled several holes in it to be able to put the thing into the individual cut piggies and measure the CO-% in there.
It works and I start to take the measurements from the 3 on one exhaust, it goes like this = 4,7 - 4,7 and 5,1
When a re-check those 3 then I measure : 5,9 - 5,6 and 5,5 ??? The same occurs at the other exhaust.
I do the measuring with motor on fully operating temperature, the lower (first) measurements are obtained before the fan comes on (4,7 - 4,7 - 5,1) - when fans comes 2 or 3 times on then I wait till it stops and measure again - this second measurement are the higher readings in CO (5,9 - 5,6 and 5,5)
The higher measurements stay steady till I shut down the hot engine.
Can the CO-% get higher - in a sort accumulate, because the gas in that tube does not can come out freely because my measuringtube is in it to mea80% in it and that way I get first lower CO and later (saturated) higher CO-'s??
Perhaps I should drill more holes in my measuringpipe to let go away more gas ?
I REALLY DON'T UNDERSTAND - CAN SOMEONE TELL ME HOW TO DO AS I WANT TO PUT MY PILOTS FINALLY LIKE THEY SHOULD BE - now they are all 6 out 2,75 turns - bike has a lot of power - beautiful sound - high speed, only the exhaustfumes do smell a little rich .
I was planning to set all 6 first to 3% of CO (but then I think I will have that misfiring at the left side as usual) - then to 4% CO and hoping that at 2500-3000 rpm I will not have the misfirings.
Thanks for your help !
