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TRX 300fw Starter issue

883 Views 12 Replies 4 Participants Last post by  retro
So I am working on my project ATV and now i am to the point where I am reinstalling the battery and body pieces.

Before this part the ATV sat in a shed for about 3 years, up until like a week ago.
My issue is as follows:

As soon as I add ANY power to the atv terminals (battery connections, positive to the top of starter, negative to engine casing under carb) the ATV instantly tries to auto-start using the electric starter. I thought the button may be corroded so i uninstalled and cleaned it, but no luck, So then I COMPLETELY unplugged the starter button and the ATV still automatically starts turning over.

All other lights and switches work as normal, but as soon as I give power via a battery or charger, it attempts to start.

Any ides?

ps: I did NOTHING to the electrical system, it is all stock.


Edit: Upon working on it today, i think that there is the possibility the electrical system was worked on incorrectly from the PO i got this from.
I added some pictures (sorry i have no flood work lights, i work in a shed with no electrisity using head lamps) of the electical system in the rear, and terminals on the starter and engine ground.

What do you guys think? I cant read a wireing diagram so i have no clue if it is still wired up "stock", but there were alot of wires that had odd spots burt and taped over, and strange connectors that do not look professionally done
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Rewired the solenoid back into the circuit based on my friends recommendation and help and the starter button works as it should now. All other electronics seem to work as is (lights, high/low, kill, etc).

I do have a request though, can someone take a picture of where the 1994 trx300fw solenoid goes? I cant remember were it "snaps on" to the frame, and the wire i have on it (which is going form + on battery to the solenoid) is only like 3-4 inches long. Need to know if this wire from the PO is not normal and need to get a replacement to run from the solenoid to battery, or if the solenoid is just mounted REALLY close to the battery.
It goes in the battery box beside the battery. Thats why the wire going to the positive is so short.
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