What is the jetting setup? Numbers Please
This is the STOCK JETTING CONFIG:
220-42 Pilot, 1173 Needle, 145 or 148 Main
200- 48 Pilot, 1174 Needle, 160 Main
What u got??
This is Canadian Dave's Recommendations:
1995 to 2003 KDX200
Stock -Run the stock R1174K jet needle in the second from the top clip position, 45 pilot jet, 155 main jet and fine-tune the pilot circuit using the air screw.
With a performance pipe/expansion chamber, the air box lid removed and the stock or a performance silencer run a 42/45 pilot, R1174K jet needle in the mid clip position, a 152/155 main jet fine tune the pilot circuit using the air screw.
1997 to 2003 KDX220
Stock run a 42 pilot jet,the stock R1173L jet needle in the second from the top clip position, a 142/145 main jet and fine tune the pilot circuit using the air screw.
With a performance pipe/expansion chamber, air box mods , the factory or after-market silencer and the stock 33mm carburetor run a 42 pilot, the stock R1173L jet needle in the second from the top clip position, a 145/148 main jet and fine tune the pilot circuit using the air screw.
Same as above but with your carburetor bored between 35 and 36mm or running a 1988 to 2003 KDX200 35mm carb jet according to 95 to 2003 KDX200 requirements.
Addition of Boyesen reeds or a Boyesen RAD Valve will require you to lean the pilot and main jet one size and readjust your air screw.