OK ALL, in my original post I had rode the scooter and then it was setting for about a month, and went to start it and it stalled. Well, actually after it was set up for a month, it DID crank up and stayed running and my wife rode it about 500 yards before it stalled!
And this is where it has been doing the things stated in the previous post. Form the point it stalled with her, it will crank and run for about 3 - 4 seconds then stall, and in all honesty it is getting harder and harder to crank. The old NAVY HT in me is thinking it has something to do with fuel, but man I know nothing about fuel injected motor scooters. Wondering if a injector is bad.
Hope this helps.
Thanks hope this helps somehow.
OK, died while riding!
First - your Kymco engine is warranted for 24 months after first registered for the road.....regardless of the model year. Are you still under warranty?
I wouldn't go much further if you are still under warranty.
If not:
Since it keeps starting, then dying - plus you've checked a lot of obvious stuff - I am inclined to think it is fuel related, too.
But not just water in the gas....maybe fuel pump is failing? With no carb, the fuel is forced (pumped) to the injector by the pump in the tank on signal from the ECU. There is a cold start step, then a reg. run step. Your cold start step seems to be working....
fuel pump not getting correct info to keep running by the ECU - would a weak battery cause this?
Less likely:
vacuum has formed in the tank? Will it start/run with gas cap loosened?
overfilled tank fowling the breather hose system?
Maybe:
injector clogged, loose, or not getting good info from the ECU?.
Worse case:
ECU has failed?
You are not getting any code flashes from the self diag. system?I forget- have you tried a known good spark plug? Got a good spark when grounded to frame?(plugs don't just crack on their own - cap
not seated, cap needs screwed into wire a few turns?)
This will be good info for other owners, when we get it figured out!
Stig