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Originally Posted by imsimon

just after opinions?

firstly bike currently has 42 pilot, JD Blue needle on top clip, main 180 A/S about 1 1/2 out

bike has recently come back from a bottom end build, on first ride out it fouled a plug, just put new plug in and I reckon just by revving seems a little rich, spooge and sometimes hard to rev like to much fuel in there, My problem is, I have a race at the weekend and no chance to ride at all before it, I know the bike is running a bit rich but I know its rideable, I would like to try going down a jet on the pilot circuit but wouldn't be able to test it before the race!

so its no where near ideal but would you a) leave it as is and carry 2 extra plugs in back pack or b) take a chance and put a 40 pilot in and hope for the best, Ive also got a N3eg needle and jd red needle but again this seems very pot luck as to what I would get with no testing,

Any guesses welcome!

It would be helpful if you included the year and model of your bike.