Reply To: Gv125s loss of power
Could be coils ? I can’t remember if you have NGK caps , but if you have OEM capsd, make sure NGK caps & laser plugs are a #1 must have on these bikes because the caps always break down before the actual coil does.
If you already have NGK caps , check your coils. and caps with the comments i said above ^
Do this test and tell us the numbers:
– Idle => what voltage is the battery?
– Revving at 5,000 rpm => what voltage is it ?
This is a charge system test or battery test , the fuel pump in those GV EFi machines draw A LOT of power hence 30 amp fuses or relays are used by Hyosung!
Any funny behavior with the pump => the bike quickly reacts strange.
Here is the O-Ring topic below (owner posted a picture of the oring that deforms):