Jetting N Sprocket Qs

My advice would be to take that jet kit back and buy the jets seperately. I bought one of those kits when I had my raptor and ended up not using any of it. I would go to the dealer and buy a 168, 170, and a 172 main jet. Then get a 45 and a 48 pilot jet with the ncvq needle. The jets are only a couple bucks a piece and the needle is about 13 bucks. Put the needle on the 3rd clip from the top and start with the 168 main and the 45 pilot. That should be a pretty good start.

QUOTE (NEPAmx @ Mar 22 2009, 09:40 PM) index.php?act=findpost&pid=760934

i recently added a few new mods. smaller rear tires 18in. i was wondering if i should change my front or rear sprocket sizes. 15 tooth or 25 tooth? and the other question was: i just added a lexx mxe slip on exhaust modquad intake with the flange, air box lid off and bought a dynojet jet kit. now i hear dynojets are different sized??? what would be the recommended setting to jet my bike. my jetting is still stock. PLEASE HELP. this has been a headache.[/b]

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Well adding a 15 tooth front or a 25 tooth rear will provide totally different results. Going with a 35 rear would probably be a better choice if you want it to be similar to a 15 tooth front. I would have to say try both and see which one suites you best, the only way to really know is to just try them.

depending on what year bike you have you may have an adjustable needle already in the carb. no need to buy another one, Elevation, temperature, and other factors will dictate your jetting. Just get some jets and keep trying until it fells right. Looking at the spark plug is also a good indicator if your rich or lean.

QUOTE (GNCCRACER! @ Mar 23 2009, 06:13 AM) index.php?act=findpost&pid=761000

depending on what year bike you have you may have an adjustable needle already in the carb. no need to buy another one, Elevation, temperature, and other factors will dictate your jetting. Just get some jets and keep trying until it fells right. Looking at the spark plug is also a good indicator if your rich or lean.[/b]

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thnks for the info. i will definately be "trying" cross my fingers.

QUOTE (RoostItUp @ Mar 22 2009, 10:44 PM) index.php?act=findpost&pid=760966

Well adding a 15 tooth front or a 25 tooth rear will provide totally different results. Going with a 35 rear would probably be a better choice if you want it to be similar to a 15 tooth front. I would have to say try both and see which one suites you best, the only way to really know is to just try them.[/b]

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thanks i will definately grab both and try it out. any difference in quality with primary drive products. i noticed they were fairly cheap. i think the front primary drive's were like 8 bucks.

ya bro stock rear sproket is a 38.
and the ratio is about 1 in the front changes 3 in the back.
with 18's u should be back 2 a stock gearing feel with a 15 tooth front