Hello,
This is odd.
Since you have both kill switches in the "ON" position - Please try turning both kill switches to the "OFF" position - now crank the engine with a bit of throttle added - like 1/8th > 1/4 of a turn on the grip.
Anything?
Even in the "OFF" kill switch position my LIKE200i will sound like it is trying to fire & is about to start! - but it won't.
Nothing?
OK, with kill switch "ON", and you're certain - (this little thing still puzzles me on both my scooters - which is off...?) - let it sit to clear a flooded wet plug, then try after 20 mins with no throttle added....only a quick try. These things fire/start quick - so stop after a short try, or you'll flood the plug.
No go?
OK, now add that 1/4 throttle & start it.
No go?
Wait 20 mins....give full throttle and try to start.
No Go?
Put battery on a battery tender over night & try again with no throttle added.
Electronic Fuel Injected engines need a very strong battery to fire.
Do you hear the fuel pump running when you turn on the key?
Here is my thinking - as a three yr LIKE200i owner -
(1) you actually have the kill switch in the wrong position (easy to do -I've don it),
(2) or the scoots are flooded - so give it a wait.
(2) or your batteries are too weak from sitting. They crank but not enough juice to start the EFI systems. Give one a good charge over night.
I do not think these LIKE's are that sensitive to old gas, and can't see both plugs getting fouled, broken, or having bad leads or coils, or dead fule pumps or clogged injectors - not at the same time.
IF you have several thousands of miles on these scoots and never had the valves checked that could cause hard starting - but I doubt you do have boocoo miles on them.
Small steps first - since these are pretty rugged and reliable scooters for use in 3rd world countries. Check kill switch, clear flooded plug, add throttle to start procedure, charge battery.
It would be very weird indeed if it is more than one of these simple things that killed BOTH of your LIKE's.
My $ is on the wrongly positioned kill switch or too weak battery, or flooded plug.
Please keep us posted. You'll get 'em started!
Best of luck...
Stig