Almost got this thing right...I am runnin 175/180 DJ jets and a few of you said that was way too much. It runs strong on the top end and doesn't cut out or load up. I rode with a stock Warrior so I didn't have anything to compare too. I don't think its too rich but didn't get a good plug reading. Now my problem comes in at 1/4 to 3/4 throttle I think. It seems to load up and wanna stall. Kind of like bogging down. Is that my pilots too lean or should I move the needle up? I am at position 4 now. My air screws are at 3 1/4 and 3 1/2. Should I change the pilots to 25 or 27.5 and they would effect my air screws right?

Thanks again for all the help!

Why am I bothering with the Dynojet kit at all? They themselves don't support open airbox runnin. Should I return everything to stock and run 160/165 Mikuni jets? Would I lose that snappy throttle response?

 

move the clip .

 

Up or down. Is that a lean or rich condition. Sorry for my ignorance.

 

move the clip up makes it lean move the clip down makes it rich
stock raptor is number #3

 

BM660
these two web pages have insite to your problem also explanes each item in the carb and how it works which to tune for
http://www.factorypro.com/tech/carbtun.html
http://www.motocross.com/motoprof/pdffiles/carb101.pdf
this one shows jets yam vs dj ttp://www.users.qwest.net/~tcamp30/jets.htm

 

BM660
Carburetor Jetting Troubleshooting

Carburetor troubleshooting is simple once the basic principles are known. The first step
is to find where the engine is running poorly, . It must be remembered that
carburetor jetting is determined by the throttle position, not engine speed. If the
engine is having troubles at low rpm (idle to 1/4 throttle), the pilot system or slide( air /fuel screw)
valve is the likely problem. If the engine has problems between 1/4 and 3/4 throttle, the
jet needle and needle jet (most likely the jet needle) is likely the problem. If the engine
is running poorly at 3/4 to full throttle, the main jet is the likely problem.

 

BM660
YOU ARE INTO FINE TUNE PART OF JETING WHICH WILL TAKE 80% OF YOUR TIME
YOU JUST NEED TO FIND THE BALANCE BETWEED MAIN JET SIZE AND NEEDLE POSITION
BEST GUESS: THINK YOU ARE FAT (RUNING RICH ) YOU USED DYNOJET JETS
THIS IS WHAT I WOULD DO TEST THE JET SIZE AND NEEDLE POS.
LEAVE THE NEEDLE WHERE IT IS
DROP DOWN ONE SIZE ON JETTING 173/178 <DJ JETS_ ( LESS FUEL)
BEST GUESS ON DYNO JETS SIZE
IF CANT GET DYNOJET JETS USE MIKUNI (162.5/167.5)
SEE IF THE PROBLEM GOES AWAY OR BECOME DIFFRENT
TRY TO READ THE PLUG
OTHER OPTION
LEAVE JETS IN THAT YOU HVE 175/180 CHANGE THE NEEDLE POS TO
NUMBER #3(LEANER LESS FUEL)
SEE WHAT HAPPENS
NEED TO GET A PLUG READING
NOTE AFTER THESE CHANGES THE PROBLEM SHOULD BE DIFFERENT
IN A DIFFRENT THROTTLE POSITION