I have a 86 model kx80 or 85 did run but stopped running...so I cleaned out the carb Twice. Checked the spark plug,Its getting spark,and changed the gas...what else could it be??

 

Could be anything, but we might be able to narrow it dow with some more info. What are the symptoms? How did the problem start? Did anything happen between running and not running? Hopefully we can help you out, good luck with the fix.

Welcome to KF!

 

Have you check the level of your bike's engine oil?

 

That won't stop it starting unless it has seized