sputter

04GS500kid · September 23, 2009, 02:21:30 PM

when i put the bike into first gear and ease off the clutch the bike sputters, it looses power untill about 4k then it is fine but i know the power that should be there isnt.... any ideas on what this could be actually it does it at any low rpm i have a d&d exhaust k&n lunch box and no idea what jets are on there any clue as to what i should do thanks any and all help would be great

Bluesmudge · September 23, 2009, 02:24:06 PM

Did you install the D&D + K&N or did the previous owner? If you did it the obvious problem is that you still have stock jets.

joshr08 · September 23, 2009, 02:25:02 PM

i would say its a carb issue and you need to find out what jets you have in it. if your running that exhaust and that air filter you could melt a piston or valve or both. pull your plugs and look at then tell us what color they are. unless they are bright white then just tell buddha you need a jet kit for thats setup...lol

04GS500kid · September 23, 2009, 06:25:27 PM

ok so i just pulled my plugs they are white where the element is for spark but a more black color twords the metal where it is threaded ? what is this about and if i need jets buddah can you tell me what they are so i can piclk them up at my local shop thanks

joshr08 · September 23, 2009, 06:45:29 PM

your running LEAN. hence no power richen it up and youll be fine.

04GS500kid · September 23, 2009, 06:51:30 PM

ok so how do i do this by taking the mixture needles out how many turns from full lock in ?

Bluesmudge · September 24, 2009, 01:11:36 AM

http://www.angelfire.com/mt2/mikesgs500/rejetting/

04GS500kid · September 24, 2009, 06:15:58 PM

switched to 150 mains, runs so much better no sputter in 1st and other gears but i do feel that she is lacking some umph still any ideas

ohgood · September 24, 2009, 06:31:23 PM

Quote from: 04GS500kid on September 24, 2009, 06:15:58 PM
switched to 150 mains, runs so much better no sputter in 1st and other gears but i do feel that she is lacking some umph still any ideas

that sputter in 1st gear would be your idler jets, no ?

there are at least 2 threads (joke) discussing how to rejet a gs. and the wiki. give it a shot.

if you really want to liven up your off-the-line performance, drop a tooth on the front cog. you won't even care about the difference for top end unless you fly on the interstate for hours on end.... and that's just boooooring on a gs (or anything for that matter).

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sputter