Suggestion For A Non-starter

[KDXSteve220]

I got a 99 KDX 220R. It won't start. Here's the quick history, I replaced the stock piston after it 'gernaded' on me. It sent small shrapnel down the motor but no major damage done (that I could see), removed most of the pieces and put it back together. Started up first kick! Drove it up the block to a friends and turned it off with the kill switch. Went to take off and it wouldn't start. Got it home and started checking things, found out I had no spark. Bad spark plug. Put a new spark plug in it and wham-O, now it's sparking nicely. Still won't start. WTF. Took the carb out, cleaned out the jets, put her back together and still won't start. I can check compression again, but I'm pretty sure it's still good. There's spark now too. And the plug is wet. Any suggestions? Thanks for the help.

 

[jaguar]

it can spark with you holding the plug against the head, but still not spark inside the engine if your ignition system is weak. That is because there is compression inside the engine which makes it harder for the spark to happen.