KymcoForum.com
Offroad => MXU => Topic started by: smeade6108 on May 31, 2022, 04:53:31 PM
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I recently purchased a few used ATV's for the fam. Kymco 50 mongoose, MXU 150, and a Honda 300ex. I don't know the exact age of the MXU 150, but I'm assuming it's 2007 give or take. Anyway, the 150 was running fine for a few days, but overnight it now dies when I put it into forward or reverse. I've tried a hand full of things which would result in a day or two or even less of things appearing to be fixed, but the issue eventually comes back up.
Things I've already tried
- Cleaned out the carb (didn't even need to be cleaned, but cleaned anyway)
- Changed the fuel and air filters (definitely needed to be changed)
- Adjusted the idle, which worked pretty well when I found a sweet spot. Adjusting the idle seemed to have the best results, but now even adjusting the idle does not work.
- Checked the safety switch on the left brake handle and it appears to work fine
I'm not very mechanical so any suggestions would be appreciated. Most of the things I tried were suggested by friends and this I read online. I've talked to some ATV owners that I know and they can't figure out what's going on. It's a really old Kymco 150 so, I dont' want to spend a lot of money taking it to get repaired if I don't have to.
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Open gas cap and try...
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Already tried that with no luck, unfortunately.
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Okay, rules that out. Does it try to move when shifting into either forward or reverse?
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No it does not. The moment I put into forward or reverse it shuts off as if I turned key off. I just tried it when I got home from work it worked just fine. The moment I turned it off and started it again, the same issue came up. It seems to work after it's been sitting for 24 - 48 hours and will continueto work as long as its still running. It quits working as soon as I turn off the engine and start it back up again.
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No it does not. The moment I put into forward or reverse it shuts off as if I turned key off. I just tried it when I got home from work it worked just fine. The moment I turned it off and started it again, the same issue came up. It seems to work after it's been sitting for 24 - 48 hours and will continueto work as long as its still running. It quits working as soon as I turn off the engine and start it back up again.
Bet you got a wire worn through near shift linkage...
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Bet you got a wire worn through near shift linkage...
I was hoping you wouldn't say it was a wiring issue, LOL. Is it a new gear change switch that I need? I attached a screen shot.
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I was hoping you wouldn't say it was a wiring issue, LOL. Is it a new gear change switch that I need? I attached a screen shot.
I would not get that switch until you have inspected/tested and proved that is the cause.
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I would not get that switch until you have inspected/tested and proved that is the cause.
Thank you so much for all your help! I really appreciate it. I'll do some digging and tests this weekend.