If my bike is standing it revs very good, when i drive it it jerks from 6
to 7000 rpm. if i pull the clutch and revs over 7000 rpm it runs
beautiful. could this be a valve problem and what is the valve settings. please, i need help.
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Did you leave your motorcycle in gear when you turned it off? It sounds like the side stand safety switch is keeping the bike turned off. If my Suzuki is running and I pull in the clutch, with out raising the side stand, and I place the bike in gear with the side stand down, it will immediately shut off. The cycle is set up that way so you will not drive with your stand down and go out of control when you take your first left turn. If your cycle is not in neutral and your side stand is down, that would cause the condition you describe. If that is not the case start by inspecting the side stand safety switch and the clutch safety switch for proper operation.
You might have a leak in your tube mount between the carb and head. Let the bike idle and spray some starting fluid on the front of the carb. If the idle shoots up, you have a leak. Either cracked/weatherd or not tight enough
its electrical check security of the entire spark plug circuitry starting by taking the plug wires off and remove the plugs to check to see that ceramics aren't cracked , if plugs are good now inspect the inside of the plug wires for corrosion, if good now check the other end at the coils for integrity. since the bike does run good up to 9000, then i would say that your plugs are probably good, and the spark plug wires are probably good also so i would look into the spark unit assembly next for loose connections ..a lot of things could be causing this; a bad tilt switch, a bad rev limiter, a shorted wire to the pulse generator system..this is not a simple fix..good luck.
so i drove my bike sputtering to school and notice that there werent problems with the fuel system cause i heard the engine drowning in the fuel cause the ignition system couldnt explode it by a to weak spark from the spark plugs, so i only had to change the spark plugs and everything was good as normal
sorry if my story writings look a bit weird, cause i dont speak or write english where i live
It sounds like the primary drive chain is loose. The way I adjust mine is to take off the upper left inspection cover, start the bike and slowly tighten the adjuster until it starts to wine, then back off until it stops. Rev it slowly and listen for a wine. No wine good to go.