Kymco Super 8 150 Won't Start, New Battery

[Pablo]

I just got a Kymco Super 8 150

It has a new battery. 

When you turn the key, the lights don't come on, the horn doesn't work, starter button doesn't work, basically there is no power to the bike. 
I am able to jump the starter solenoid and crank over the motor.  I replaced the starter solenoid.

Still no power to the bike. 


I am thinking it might be the ignition switch, but I have no idea how to troubleshoot beyond what I have done.  Anyone know where to look next.  (Also looking for a service manual for this Super 8 150).

[CROSSBOLT]

I just got a Kymco Super 8 150

It has a new battery. 

When you turn the key, the lights don't come on, the horn doesn't work, starter button doesn't work, basically there is no power to the bike. 
I am able to jump the starter solenoid and crank over the motor.  I replaced the starter solenoid.

Still no power to the bike. 


I am thinking it might be the ignition switch, but I have no idea how to troubleshoot beyond what I have done.  Anyone know where to look next.  (Also looking for a service manual for this Super 8 150).

Fuses? Trace power from battery to fuse holder? Ground connection from battery?

Year and miles on bike? From whom did you get this bike? Did it run and did you ride it before you got it?

[Like50]

Change the fuses, althought they seem not to be broken. Helped me once.

[ldersch]

Also looking for a service manual for this Super 8 150

https://www.manualslib.com/products/Kymco-Super-8-150-3498928.html

[CROSSBOLT]

https://www.manualslib.com/products/Kymco-Super-8-150-3498928.html

It is an Owners Manual not a service manual....

[Pablo]

Fuses? Trace power from battery to fuse holder? Ground connection from battery?

Year and miles on bike? From whom did you get this bike? Did it run and did you ride it before you got it?

Found a fuse that was wrapped in electrical tape and broken.  Replaced that and starter ignited continuously til I disconnected the battery. 

The fuse I changed got really hot.  I disconnected the start button on the handle bars and the fuse cooled off. 

At this point I am guessing that this start button switch is bad.  Any ideas?


Anyone know where I can source one or if any chinese one can be retrofit?

[CROSSBOLT]

Found a fuse that was wrapped in electrical tape and broken.  Replaced that and starter ignited continuously til I disconnected the battery. 

The fuse I changed got really hot.  I disconnected the start button on the handle bars and the fuse cooled off. 

At this point I am guessing that this start button switch is bad.  Any ideas?


Anyone know where I can source one or if any chinese one can be retrofit?

Yes, test the start button (switch) with a multimeter or test light.

[Pablo]

Yes, test the start button (switch) with a multimeter or test light.

There's no power at the switch..

The fuse that get's hot is on the Black->Black/blue wire.  Any ideas what's on that circuit?

[CROSSBOLT]

There's no power at the switch..

The fuse that get's hot is on the Black->Black/blue wire.  Any ideas what's on that circuit?

My thinking was:
You said once the wrapped, broken fuse was replaced the starter ran continuously. Fuse got hot. Starter stopped when fuse pulled or start switch disconnected. THEN test switch with multimeter set to ohms to see if switch turned on when pushed and turned off when released. Did you do that?

[Pablo]

My thinking was:
You said once the wrapped, broken fuse was replaced the starter ran continuously. Fuse got hot. Starter stopped when fuse pulled or start switch disconnected. THEN test switch with multimeter set to ohms to see if switch turned on when pushed and turned off when released. Did you do that?

I found where the switch was shorting out where some insulation rubbed off.  I took it apart and separated the wires.
The switch seems to work intermittently with ohms as low as 3 and as high as 140 dancing wildly when switch is pressed.  It seems I am chasing on problem to the next...


I have  found the left handle bar switches (turn signal, Dimmer Horn, switches) are causing the fuse to heat up .

I unplugged them and it stops heating up.