1995 Suzuki LT-F4WDX - Electrical Problem?

[tazman4 10]

Hey everyone! I hope someone can help me out.

I have a 95 LT-F4WDX that I have been having a strange problem with. It starts & idles perfectly but when I try to rev it up it spits & sputters. I found about 2 weeks ago that when I turned the switch to "headlights on" it ran fine. That worked for a few days but then I had to position the beam selector switch in the middle of high/low beam for it to run right. That worked for about two days, now it must be on low beam & it has to warm up for about 15 - 20 minutes before it will run ok. When switched to high beam, the lights go out & it dies. It seems to me like it needs to have a load to keep running right.

Anyone have any ideas?

Thanks!

[oxidized_black 78]

trace all your wires and make sure they aren't grounding out and broken i would say first. i'll look to see if i have a manual for your bike and you can look at the electrical schematics ...

[tazman4 10]

Thats where I thought I would start... does not sound like fun.

Thanks oxidized_black

[oxidized_black 78]

it isn't fun, but a couple hours of doing this yourself will save you big in the end, atv mechanics aren't cheap. check for rub marks, bare wires etc., you'll do alright !!

[tazman4 10]

Well I took the entire body off and went through every wire I could find and they all look good. Took apart and cleaned all connections and it still does the same thing. A friend said it could be the voltage regulator. Thoughts on this? Could a faulty regulator cause symptoms like this?

[dusty011 10]

Hey everyone! I hope someone can help me out.

I have a 95 LT-F4WDX that I have been having a strange problem with. It starts & idles perfectly but when I try to rev it up it spits & sputters. I found about 2 weeks ago that when I turned the switch to "headlights on" it ran fine. That worked for a few days but then I had to position the beam selector switch in the middle of high/low beam for it to run right. That worked for about two days, now it must be on low beam & it has to warm up for about 15 - 20 minutes before it will run ok. When switched to high beam, the lights go out & it dies. It seems to me like it needs to have a load to keep running right.

Anyone have any ideas?

Thanks!

Sounds like you have some wire chaffing going on start chasing wires and cleaning conections you will find it. print off a wiring scematic.

[tazman4 10]

Ok, apparently a voltage regulator/rectifier can cause this?

I checked the battery voltage with the key off & it read 14.5. I turned the key on but not the bike & it slowly dropped to 12.8 and stayed. When I started the bike it immediatly shot up to 19+ volts. I unhooked the regulator/recitifier, started the bike and it read a steady 13.4 & seemed to rev up and run fine.

[tazman4 10]

OK, just wanted to confirm that the voltage regulator was the problem. I put on a new one & everything is fine! Well, I have to replace the taillight & headlight bulbs (they dont seem to like 19+ volts too much) but other than that everything seems fine.

[oxidized_black 78]

Right on !!!

Glad you got the problem taken care of !!