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Master
3,567 Answers
- Posted on Aug 07, 2009
Re: i have a 2000 yz 125 and it would start. i have
- Start with a new spark plug. Do you see spark? If not, check the side stand kill switch. It kills the engine so that you don’t start out with the side stand down. If broken or out of adjustment, it would kill the spark. Check for a broken wire at the side stand switch and coupler. Try moving the kill switch by hand. If that doesn’t work then wire a jumper around the switch to bypass it.
- Drain the Carb then refill it. Only twist the throttle one time in ten kicks. Extra gas pumps in on every twist of the throttle. Twist too often and flooding happens.
- Check the fuses. How good is the battery? Is the handlebar kill switch on? Is the Neutral light on?
- Check the operation of the ignition switch and all kill switches with a volt ohmmeter. Check the wiring harness. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires? Is the bike in neutral and the neutral light is lit up? If no neutral light, check the neutral switch and neutral switch wire on center casing. If still no spark, get CDI system and coils checked at the dealers shop.
- Got gas and is it turned on? Clean air filter?
- Carb, head and intake manifold mounted tight?
- Does the carb intake manifold have reeds? What condition are they in?
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