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yz426ex36
12-25-2007, 12:53 PM
I am putting a 03 and 05 crf carb on my 05 trx 450r's... I installed the noss machine adapters I installed the same needle that baldwin puts in his carb.. what would be good jetting to start with? I have a hrc cam, mx port,13.5:1 piston and aluminum pro exhaust... just trying to get a good starting point... thanks

BlaineKaiser450
12-25-2007, 01:04 PM
im going to say a 185 main but im no expert on jetting

ss440ex
12-25-2007, 01:09 PM
I have a 175 in mine at 700 ' elev.

yz426ex36
12-25-2007, 02:49 PM
well Ill start around a 175 main but I have no idea on pilot,needle position orleek jet... I am pretty good with carbs but a starting point always makes it easier...