My NC30 cooked it's wiring to the generator on Saturday, leaving me with zero charging and a flat battery at Oulton Park. I finished the day by charging between sessions, and bump starting to save battery.

I've ordered a repair kit for the melted wiring plug, but not sure which wire goes to each pin. Does it matter which one of the stator wires connects to regulator plug, or can they go to any one of the three yellow pins? The wiring on this bike is a right mess so I'm going to replace the loom for charging circuit.

I believe any yellow can be connected to any yellow stator wire. Red is power and green is ground. I had the same problem with my bike. I built a new harness that goes from the stator wires on the left side of the bike and ran it to the regulator. I also ran a fused power wire wire to the battery and new ground wire to totally get rid of the wiring connector on the right side of the bike. I also used a slightly larger than OEM size wires to help cope with electricity running thru the stator wires. Have not had a problem since and that was about a year and half ago.

Thanks - sounds like a good idea

that connector will have corroded over the years and needed to flow more electric to overcome the corrosion which makes heat and eventually melts.

i replaced my connector with an amp style weatherproof connector that was crimped / soldered on to protect against corrision and this problem

i suppose filling it with dielrytic grease will do same job

I managed to suss the charging problem. Ran new wires to a 3 pin block connecter at regulator, by passing damaged loom which I cut back and insulated. I taped up the new harness and routed it up the inside of frame. Now getting a healthy 14.5 volts to battery with engine running. Hopefully it should be a permanent fix.

so long as all your connections are soldered and wont corrode you wont have any trouble.

soon as you get corrosion on the connection the resistance goes up and it creates heat and melts, this happens overtime on an nc30 as the block seems to get a lot of crap in it.

crimping works fine for a few days / weeks but then the corrsion sets in and it sets fire.

looks like youve soldered / heatshrinked the wires so i think itll be ok

Yes soldered and heat shrinked to generator wires, and proper crimped spades in the 3 way block connector

GeeTee wrote:Yes soldered and heat shrinked to generator wires, and proper crimped spades in the 3 way block connector

I always solder the connectors in the block too as corrosion is easy to happen, I installed a sealed weatherproof connector on the last one I changed to keep out corrosion.

should be ok but worth checking it peroidically make sure its ok