Ok guys. This problem is killing me. My fourtrax 300 must have a short somewhere in the wiring. I first noticed the problem when I had no lights for the neutral reverse or oil temp. And the electric start wouldn't work. So I kickstarted it while we rode for the rest of the day. No big deal. Well when I brought it home I checked it out and found a burnt fuse from the front of the bike to the middle red plug connector by the battery. Well they are soldered in line so I just cut the wires and put a spade type fuse in place. Wired all the same way. So I went to reconnect everything and when I went to put my positive terminal back on the battery the bike tried starting. Even with the key off. So I went back and disconnected cdi box and other smaller box. Same problem. Other connections seem to be ok. Any suggestions?

 

Only time mine ever tried starting is when I accidentially hooked the negative wire up to the starter. But mine also did the same thing, and it was a burnt fuse in the front and I fixed it and bought a new battery and haven't had any problems since

 

Ok thanks man. Did you have the three lights lighting up at all when you had that problem?

 

Nope, none of the lights would come on. Every once in a while the neutral would flicker but that was about it.

 

Well. Checked all the fuses. All good. Start solenoid isn't the problem either. Even with wires disconnected it does the same. So I still think it's a short somewhere in the wire harness. I ordered a new one today. I'll try that and see. If not that then I have no idea lol. Thanks for the reply

 

Changed the wiring harness still same thing. I have no idea

 

It's gotta be something by the battery then. Did you check everything on the back of the bike?

 

Ok well. I went and talk to a guy at a fourwheeler shop by the house and he told me it's the start solenoid. Which after he explained it to mean it makes sense. It has to be connected to make it not try starting. I got a new one on the way. I'll keep you updated. Thanks for the help.

 

Did you get the neg.batt cable mixed up with the starter wire from solenold? sounds like you hooking up the starter wire straight to batt.!Its eazy to do.make sure the ground from back of starter is goin to the neg.batt.And the starter wire is going to solenold.If you have them backwards the atv wouldnt have an ground to burn lights and the starter would enage when you hook cable to batt.Good Luck.....

 

Could you tell me were up front is that fuse you said is blown please