Reply To: Midrange lack of power GT125R
Do you have the following ….?
- Accessories on the bike that need electrics ?
- What exact battery is on it ? (name and size of it) and how old is it ?
- Has the battery ever had an independent test for free on any local garage or halfords (they use special Yuasa meters for that)
- When riding , does it misfire or jerk forward and back sometimes ? (ignition coils vs cdi = as they do mess with electrics if they go haywire and your reg is still forced to keep sending “regulated” 14 volts on top of charging the battery too)
- How old are the headlights ? Exact bulb and name ? (Generally very old bulbs get more yellow ish and can tax the wires and charging system to light them up) ( I mean new ones already want 55 watts out of the electric system )
Depending on your replies (all i asked) , we will see if it was best you got an even bigger reg rec that’s used on the 650 bikes (see shop) but …… rarely …. As the general global consensus everywhere is that OEM Regs die often more than the proper aftermarket ones (Hyo is power hungry especially later models with more electronics) , hence hyosung changed stators many times across 125 to 650cc models , even the 125cc has had 3 regulator changes by Korea themselves. A good aftermarket reg keeps it going as long as the stator behaves well , and “chinesium” regulators will go on fire faster than Korea’s own regs.
Something on the bike is “overloaded” …. The reg looks like it was having a hard time OR also check the stator OHMS after its warmed up for 10mins , and tell us the resistance (more resistance = more tax on the bike , bikes don’t like being taxed too much) (any bike in general) thats why the stator ohm readings are usually checked ice cold because we know it rises up with heat (heat is the enemy of any electric device on earth)