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Canadian Daves JustKDX
ARHG! Jetting an '03 220
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[QUOTE="cicone, post: 704619, member: 46919"] Big John--I thought you were gonna hold off on the jetting 'til you got the Gnarly. Anyway, here's my $.02. First, make sure you have a clean air filter and that the box is sealed well--I used blue rtv. Second, check your silencer packing---it could be gunked up bad. If so clean and replace packing. A couple of tips you might like: 1) get some small hemostats to make working with the jet needle more enjoyable. 2) go to your local hardware store and buy Allen screws to replace the Phillips heads that hold the carb bowl on---I believe yours are 4x16mm---makes it much easier to mess with the main and pilot without having to remove the carb. Now the fun part. I'm a seat of the pants guy---been involved with racing and high performance engines since knee high to a grasshopper. Oh, yeah---make sure the float level is correct and have good fresh fuel, not what's left over from last summer's lawn mower jug. Using the above tips, it should be relatively easy to put the bowl and go up on the main 'til it doesn't want to wind out. Then play with the needle to see if if you can get a smooth yet strong transition from about 1/4 throttle to wide open---if you can't, search the forum and look into a couple each of b,c series needles from Sudco at about $5 a pop---ei bek, bel,cek,cel. Search first though, because I'm not positive which ones you should get---I don't have a 220. Now the fun part---sounds like you had a lean bog if the engine dies when you hit the gas---mine will do the same thing if I try to get on it before it's warmed up. Whoops, make sure the bike is at operating temperature when jetting or you're wasting your time. I believe that if it starts on the first kick or starts without choking---WHEN COLD, that it's too rich. Follow the instrucions in the "tech tips" section on jetting to check if your pilot is close. Once you get that, it comes down to the air screw. You want very little, if any, hesitation when you peg it from idle---I know mine's right because the bike will stand straight up when i nail it---trust me---you'll know when it's right. Have fun. Please don't flame me too much!!! ;) [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
ARHG! Jetting an '03 220
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