View Full Version : 300ex jetting ?
kmmon1
03-05-2005, 10:22 AM
I know this has been done before and after searching the board I have numerous different answers. I have a stock 300ex, just bought a supertrapp ids2 full system, I have a uni foam filter, with the airbox lid on, I will probably keep the uni filter and will beleaving my air box lid on. I ride in all kinds of conditions and dont want to run open lid, maybe drill a hole or 2 and put the little filter plugs they sell to get more air. What size jet would you run? main, pilot and needle, I wanted to just go to the dealer and order these jets instead of buying a jet kit. Does anybody who bought these have part numbers maybe I can order online. Also what carb is on a 2000 300ex. ANy advice will help
bulkdriverlp
03-05-2005, 03:22 PM
128-132 main, needle down 1clip, out 1turn on pilot screw
kmmon1
03-05-2005, 04:55 PM
thanks I will start there, is there a pilot jet that may need to be changed or just an adjustment.
Anybody have part numbers for these jets to order.
bulkdriverlp
03-05-2005, 07:26 PM
yes there is a pilot jet, but just try turning out the screw first, unscrewing it will increase the gas flow, screwing it in will close the "hole" and restrict it, i you know what i mean. if you need pics of where this stuff is located on the carb email me at
chevypower@chartermi.net ill help ya out
hardkoratvmxr
03-05-2005, 08:56 PM
i have an hmf slip on and k&n and run 128 main and moved the needle one clip position
proudnjexrider
03-20-2005, 03:11 PM
Stop being so cheap and buy a full Jet kit and good exhaust....
bulkdriverlp
03-20-2005, 04:26 PM
yea spend the 50 bucks to use 2 jets out of the kit when jets are 3 bucks a peice.lmao
JDiablo
03-20-2005, 04:36 PM
Originally posted by proudnjexrider
Stop being so cheap and buy a full Jet kit and good exhaust....
stfu
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