Recently did mods to my 05' KDX 220, added Pro Circuit pipe and 607 reeds.
With stock jetting (45 and 145) and clip at #3 position, bike bogged badly anywhere below 3/4 throttle. I raised the clip to #2 position and adjusted the air screw out to 2 1/2 turns which helped, but still had some bog.
I dropped the pilot to a 40 and that helped a bit more, also able to get idle air screw in to 1 3/4 turns but still had a bog when snapping the throttle from idle. I jumped up 150 main jet, and the bog was completely gone. Although I had only ridden with the 150 main in tight single track. This weekend I rode at a moto-x track and was hooking up like crazy, only to find that I had lost my top end power. Not liking that much I swapped my main back down to a 145. The power was back but so was the bog. The bog isn't terrible it just seems to come at the wrong time (creek or log crossing etc...) I will say that its better after the bike is good and warm.
Any suggestions on what to try next?
With stock jetting (45 and 145) and clip at #3 position, bike bogged badly anywhere below 3/4 throttle. I raised the clip to #2 position and adjusted the air screw out to 2 1/2 turns which helped, but still had some bog.
I dropped the pilot to a 40 and that helped a bit more, also able to get idle air screw in to 1 3/4 turns but still had a bog when snapping the throttle from idle. I jumped up 150 main jet, and the bog was completely gone. Although I had only ridden with the 150 main in tight single track. This weekend I rode at a moto-x track and was hooking up like crazy, only to find that I had lost my top end power. Not liking that much I swapped my main back down to a 145. The power was back but so was the bog. The bog isn't terrible it just seems to come at the wrong time (creek or log crossing etc...) I will say that its better after the bike is good and warm.
Any suggestions on what to try next?