How to reset the check engine light on Kymco 500

Sounds like your pinion/bendix gear is not reliably extending fully to engage the flywheel. There are three common causes of this: (most common) Dried up grease or dirt on the threads of the starter shaft and the pinion/bendix. Failing overrunning/one-way clutch in the bendix
replace starter.

Check out this site for your manual
https://searchmanuals.net/search7/?keyword=%2Bowners+%2Bmanual&gclid=Cj0KCQiAzePjBRCRARIsAGkrSm4hwGgMJ4loxVKnk_d9loNSyMnzjcinCTYKx6DBNotuk4W7EdNURhoaAggqEALw_wcB

Kymco MXU 500 Service Repair Manual Download - YouTube

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www.youtube.com/watch?v=nqaJ97DMgKY
Dec 31, 2013 - Uploaded by Dermat Colrut
Kymco MXU 500 Factory Service Repair Manual covers all the ...manual,Kymco MXU 500 service repair manual, free KymcoMXU 500 manual ...

right in the back of gear box same size as the drain bolt,. put in the right amount, per the manual, if you put in to much it will over flow,.

the stator produces ac current and the voltage regulator/ rectifier converts the ac current to dc current and keeps your battery charged.

So its probably your voltage regulator.
when engine is off the battery should read 12.5 volts
At idle the baterry should read 12.8+ volts
at 2000 rpm battery should read 13.0 - 14.8 volts

if your not getting those readings your voltage regulator is bad.
you can find them at parts for scooters dot com pretty cheap and they ship fast.


as for the speedo, you may be able to take apart and reset the needle. Some you can't even get to.
so you may have to get a new one.

kymco 500 has no air temp sensor,ecu reads water temp for coldstart enrickment.a new sender wont fix it ether,sender needs to read 10 degrees warmer to start

There's a button covered with rubber on the left side of the dashboard. Using a thin stick, push this firmly and hold (while the bike is running) for about 1 minute. Fixed.

Try dissconnecting the Negative Terminal on the Battery. Leave off for a minute or so, should reset it.