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Canadian Daves JustKDX
Jetting confusion...
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[QUOTE="nmilne, post: 929148, member: 61393"] Ok, still struggling with the bike ... I got my wiring sorted and have the headlight and tail light hard wired on now. However the bike still isn't running very well at all. I pulled the carb off and gave it a bit of a clean, put in a 155 main jet but left the stock 48 pilot (the 42 & 45 are on order) and set the air screw at 1.5 turns out. Float level is at about 15-16mm and I set the standard needle on the 2nd clip pos from top. I stuck in a new plug, checked the filter and individually wrapped the cut loom wired with tape to insulate them. Finally I made up some new premix (after dumping the old lot) with motul 800 at 40:1. First, the bike is still a pig to start. I kicked for an eternity until it finally got started in a spluttery manner. Once running it requires a fair bit of throttle to keep running and only idles with the idle adjuster on the carb turned virtually all the way in. Even then when idling it'll trying a stall from time to time, just bumping up off the point of stalling repeatedly until some throttle is added and it returns to its highish idle. When giving it a handful of throttle it revs but feels flat, not crisp. There's so much throttle wound on to get it to idle that you can't see perceptable change with the air screw, so I let it be. Stopping and restarting the bike is sometimes easy, sometimes a drama requiring multiple kicking. Once running it will also sometimes start bogging badly, like its starving for fuel. Giving it some throttle twisting action seems to get over it, and pulling the fuel tank cap off doesn't fix it (ie. its not a tank vaccum issue). Plug spark seems ok when kicking over by hand. When trying to get the bike restarted it seems to work best by kicking a bit, then giving it some kicks WOT to clear it out, then choke and try again.... I'm a bit lost at the moment ... any help appreciated ... I'm thinking either the carb needs a good clean out with compressed air or there's an electrical breakdown of some sort ... potentially a bad coil or similar? [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Jetting confusion...
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