Reply To: Gv125s skipping second gear and vibrating more than usual
Well done! – Looks like the big panic was over! – Be good to definitely spruce up the clutch and yes proper oil too (Motul 300V or Motul 7100!) – Change oil filter again! Gearboxes LOVE clean oil and you will notice a smoother shift initially.
Gear Sensor = Under the front sprocket, be very very careful as oil will come out of there and it is secure by an O-RING , there is also a spring inside too! So you don’t want the spring to fly out.
Get contact cleaner == clean the Socket going to the harness , incase it got oxidized and some signal loss could happen if there was water invasion.
Use Compressed AIR to blow it clean after using Contact Cleaner (NO WD40 please!🔥)
Get also ACF50 (Halfords) – Spray a tiny amount inside the plug , a very tiny amount. this is every biker’s best friend when it comes to anti rust measures and it is electric safe too.
Good luck!