New jetting on 92 KDX200
Posted: 08:03 pm Jul 07 2025
Hey all!
I figured I'd share my new jetting with my KDX.
I wanted to clean up the low end on my 200, and read good things about the DGK needle. I was going to get a CGK needle, but had no luck finding one.
The DGK runs rich, so I jetted a bit leaner.
I'm pretty much at sea level here in Tampa, with temps around 80's and 90's and very high humidity.
The bike seemed to like the 35 pilot the most, after going through the tutorial that Inda posted.
I settled on the middle clip on the needle, it provides good response and the clip above (second from top) felt a bit lean to me. Second from bottom clip felt a bit lethargic if I had to put it in words.
I actually kept the 155 main, as it runs great up top still, with the 155 being what I had in with the stock needle (1172 I think?).
I'm in the keys for a diving trip for the next couple days, so I didn't get to do a wide open run and plug chop with the main, but I suspect it's probably still on the rich end given how I didn't change it.
The 35 pilot sounds lean to me (in terms of it being small, not feeling lean). But that's what gave me the right range for the air screw. Any thoughts on running a pilot that lean?
I know it doesn't count for much, but from looking at the 3 plugs I used for the testing for the pilot and needle, the tops are a perfect brown, though that doesn't normally mean much.
It runs great though! I should've sucked it up and dealt with this a while ago! haha
Thoughts?
Thanks guys. Hope all is well.
I figured I'd share my new jetting with my KDX.
I wanted to clean up the low end on my 200, and read good things about the DGK needle. I was going to get a CGK needle, but had no luck finding one.
The DGK runs rich, so I jetted a bit leaner.
I'm pretty much at sea level here in Tampa, with temps around 80's and 90's and very high humidity.
The bike seemed to like the 35 pilot the most, after going through the tutorial that Inda posted.
I settled on the middle clip on the needle, it provides good response and the clip above (second from top) felt a bit lean to me. Second from bottom clip felt a bit lethargic if I had to put it in words.
I actually kept the 155 main, as it runs great up top still, with the 155 being what I had in with the stock needle (1172 I think?).
I'm in the keys for a diving trip for the next couple days, so I didn't get to do a wide open run and plug chop with the main, but I suspect it's probably still on the rich end given how I didn't change it.
The 35 pilot sounds lean to me (in terms of it being small, not feeling lean). But that's what gave me the right range for the air screw. Any thoughts on running a pilot that lean?
I know it doesn't count for much, but from looking at the 3 plugs I used for the testing for the pilot and needle, the tops are a perfect brown, though that doesn't normally mean much.
It runs great though! I should've sucked it up and dealt with this a while ago! haha
Thoughts?
Thanks guys. Hope all is well.