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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
1993 kx250 cold start help
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[QUOTE="Matt90GT, post: 1145590, member: 30871"] Well having worked as a mechanic for a while I have seen what some people call "clean" carbs and they are not. The power valves are on a governor and operate at a certain RPM. Take off the pipe, the side cover on the cylinder and the cover on the top from and move all the parts by hand. Other than that, you take off the top end, remove all the parts, clean inspect and replace what you need. The early kawis do have issues there if not maintained. but they will not stop the motor from running, just really hamper the power. I was thinking that your jetting is probably the biggest issue. Running 40:1 means you are running more gas and less oil. The stock jetting is setup for like 32:1. Thus you are rich. I remember my 91 kawi 250, I had to lean the jetting and then even more when I was running 50:1. Again do some web searches for the jetting on the bike. Check sites like FMF, bills and pro circuit just to get an idea what jetting they have posted there (if they have it that old still). Tear open the carb find out what main, pilot and clip setting you are on. Remove the air screw make sure all the passages are clean. Inspect the bell and blow through all those passages. Also install a new plug. [/QUOTE]
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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
1993 kx250 cold start help
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