Kymco Recent Questions, Troubleshooting Help & Support

check the pickup coil and the wiring for the shut off switches. if one rubs and grounds itself on the frame it wont spark.

Yes a new piston and a rebore of the cylinder if that is the problem. You will need to tear it down to inspect what caused the problem.

back firing is usually a sign of an air leak on the intake manifold.

Use a numbered drill set, measure the jet size using the drill bit set, then select a drill bit two numbered sizes larger and drill out the main jet, that should get you in the ball park. Here is a link to a numbered Drill bit set. 60 Pc Titanium Nitride Coated High Speed Steel Numbered Drill Bit Set

Some scooters seat latches operate with the ignition key switch.
Turn it left and right as you lift the seat.
Sometime you have to push down on the seat while you turn the key
Some have a key right on the left side of the bike for the seat latch.

If you have no key, you can pull off the rear rack and then take off the plastics above the tail light.
Once that plastic is off you can reach the latch with a screwdriver or needle nose pliers.