42 pilot 150 main for stock Keihin butterfly carb.
This webpage will be your best friendhttp://www.650ccnd.com/ht.htm
Main jet inside the carb. It's the one that runs in-line with the throttle needle. Remove the carb, disassemble carb, soak in card cleaner, and clean with a toothbrush. As for the jets, shoot carb cleaner through them for 30 seconds a piece, if they are still clogged or you want to make sure they are clean, take a very small drill bit and, by hand, work it through the jets. Reassemble and tune carb. Easy sh*t.
If you are getting gas into the float bowl, I would say your jets are clogged. Take the carb off, pull the idle and main jet out, soak them and blow them out with air. Make sure you can blow through them before reinstalling them in the carb. This should solve your problem.
Depends on what year the bike is. Well not really, just that earlier years had two carbs meaning twice the work. Most all carbs have screw-in jets. Just remove the carb (fuel hoses and throttle cable linkage), then the float bowl (the bottom of the carb body) and the jets are there for the removing.
pilot iam running is a 30 pilot,main is 310 ,and the carb is a TM 38mm ss.. stk jetting 350 main ,pilot 40 needle is a 6ej33-61-4 in the 4th clip position pilot air screw 1-1/2 -2 out
No
your stock main jets were 102.5 @5000' and 105 at sea level
If you have done all of the above, next pull the carb off and clean it. Pull both the main and idle jets out of carb and clean them. Make sure you can blow through them before reinstalling into the carb.
120 main jet on a 28mm carb
when i bought my lite ace 1995 GXL model, the stock size carb jets in place were 130 and 160, i suppose this is 1.3mm and 1.6mm respectively. the carb is an aisan model originally fitted to the 5k engine. i have replaced these though with a 120 and 150 size with not much effect on the speed but with a better fuel consumption. some owners i know had have 110 and 130 as their main jets.
take off the carb. on the botoom of the carb is a bowl take screwsa out and the big jet in the center is the main jet. remove with a flathead screwdriver