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2007 TRX450ER Blowing Main Fuses

Stoopidbot1

By Stoopidbot1
in Honda ATV Forum

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Stoopidbot1 Grand Master

Stoopidbot1

Posted
Posted

So I will describe my last 2 rides so you know what the conditions were. The first was my last race, very wet and muddy, no crashes. She ran like a raped ape, no problems at all. The next ride was some trail riding that was wet and very rocky. I bounced off of a rock pretty good on my belly skid plate. I stopped to check for damage, none, then I turn my key back to start and I lose all electrical.

I was able to pop start it and get it back to the truck. I find later that the main fuse is blown, replace it. The quad starts up just fine everything is gravy. Several hours later I turn the key on again and blow the fuse instantly. There was no riding or bouncing between the 2 starts.

:aargh:WHY?

Ajmboy Grand Master

Ajmboy

Posted
Posted

If it's in the shop...they should be able to find it. It might be your starter causing a huge load when you turn the key to start it. Disconnect the cable/connectors from the starter and turn that key on..see if the fuse blows. if it doesn't blow, your starter is the issue.

Sc0tt Mentor

Sc0tt

Posted
Posted

Bot that sux. It does sound like a wire got pinched when you hit the rock but if you and the mechanic can't find anything I don't know. I hope you have some luck finding it soon.

Stoopidbot1 Grand Master

Stoopidbot1

Posted
  • Author
Posted

I found the problem, after 2 weeks in the shop, they found nothing. I went and got it from them and took it to my racing buddy. In 15 minutes he determined that I need a new start button. The spring has collapsed causing the contacts in there to short out.

s3r4phic Apprentice

s3r4phic

Posted
Posted
Not quite. I have to get the part and install it. Of course I can't buy just the button piece, I have to buy the whole switch assembly.

figures although glad you found the fix man nobody wants to be without their ride!

Stoopidbot1 Grand Master

Stoopidbot1

Posted
  • Author
Posted

My racing buddy set up a toggle switch out of a police car on my handle bars and wired it to my starter. It works just as good if not better than stock. But it is just a temporary fix until I get the actual part. This way i can race.

ATVmechanic Enthusiast

ATVmechanic

Posted
Posted
I found the problem, after 2 weeks in the shop, they found nothing. I went and got it from them and took it to my racing buddy. In 15 minutes he determined that I need a new start button. The spring has collapsed causing the contacts in there to short out.

That's good troubleshooting by your friend! :yes:

  • 1 month later...
Guest Winchester300

Guest Winchester300

Posted
Posted

disconnect either side of your battery and put a voltmeter, yes voltmeter in series with the side you disconnected. IF you see a voltage that is not good. Start pulling fuses one at a time until the voltage is no longer present on the voltmeter, once you have identified where you can then narrow it down to what. I really hope this helps you out, I have used it on automobiles several times.

DrtyGrlKristin Proficient

DrtyGrlKristin

Posted
Posted

I thank you for your input, however I found the problem. It was actually my start button for the electric start. The spring collapsed causing a constant contact and then riding in wet conditions blew the fuse from moisture staying in there.

  • 1 month later...
Stoopidbot1 Grand Master

Stoopidbot1

Posted
  • Author
Posted
it could also be the neutral lite sensor ... mine did that after some hard landings .... i replaced it and havent had a problem sence ...

Thanks but I have been running trouble free since the new switch was installed.

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