tonyown Posted August 20, 2006 Report Share Posted August 20, 2006 Hi all, RIght now my main jet is 270 and all other jet are stock... I don't know my elevation I'm running fmf fatty's with a pro desing air filter (without the top of air box) what jet will I need for witer ? are you able to answer with theseinformations? the temperature here during winter is aprox -20 to -30 (celcius) some times -40 (QUEBEC lol) thank for all answer Quote Link to comment Share on other sites More sharing options...
Dinner Posted August 21, 2006 Report Share Posted August 21, 2006 You will have to go up on your main and probably your pilot so that it will start in the cold weather. I would say start around 300 Main, 27.5 pilot and go from there. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted August 21, 2006 Report Share Posted August 21, 2006 Sorry..I'm south of your border...I'm a Farenheight kina guy... A GENERAL rule of thumb is one main jet size for every 20 to 25 degree decrease in temps (again, Farenheight scale) Normally...we up the mains two to 3 sizes for winter riding here in MI. Quote Link to comment Share on other sites More sharing options...
tonyown Posted August 22, 2006 Author Report Share Posted August 22, 2006 We never use Farenheight here we know that it exist but always use celcius I knew you were in Farenheight but I tought you'd know celcius :baseball_innocent: Quote Link to comment Share on other sites More sharing options...
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