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How do I test the neutral switch on my 2000 Yamaha Big Bear 400 4X4?


Go to solution Solved by lester,

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Posted

When the power fails do you still have 12 v at your battery, you may need to load test your battery, it may show 12v on the battery but when a load is put on it, like the lights and starter it cant handle it. Also the Big Bear is fairly specific about the battery, it. needs what they say it needs, i put a weaker Amp Hr battery on mine when i first got it and it didnt like it one bit.

  • 3 weeks later...
Posted

Here is the latest and the greatest. It came down to testing the CDI and it turned out to be the culprit. Now after looking at the ridiculous price that is wanted for one, I looked at some 2000-2001 Kodiak CDI's on Ebay that were only 20-30 dollars, so I contacted them and asked if it would work on my 2000 Big Bear, and of course they all replied no. I went ahead and printed off a copy of the wiring diagram of a 2000-2001 YMF400 Big Bear 400 Kodiak, and guess what? All of the necessary connections for the 2000 Big Bear are Identical to the Kodiak! So, I went to Amazon (because I have an account there) and bought one for $23.59 (AIVWUMOT-Ignition-Control-5GH-85540-00-00), figured "well for that price I guess I can give it a try". Well, it works great, and it is up and running. Thanks for everyone's help it was greatly appreciated!

  • Like 1
Posted

Great reasearch! Thats good to know that it will work because they looked different and like you said everyone said that the Kodiak and Big Bear were different. I thought it was Odd that the Big Bear 400 was the only model that didnt have an aftermarket CDI available. 

  • Like 1
  • 1 month later...
Posted

Well, here's the latest (LOL). It runs and sounds great, the only problem now is that I can't get it to go in gear! It goes right into reverse and into neutral, but when I try to go into first, it won't go. I've been trying to adjust the clutch but I'm not having any success so far. I would love some suggestions. It has set awhile so could they possibly be stuck together?

Posted

Did this just happen or has it been troublesome all along, i have the opposite trouble with mine its very hard to get into reverse but i rock it and its hard to do sitting on it so i get off and move it back and forth while shifting and it finally goes in.

Posted

I don't know exactly how the setup works, but there is a cable that operates a safety on reverse, and if that isn't adjusted right it could be not moving/giving enough after reverse has been deselected and so it's preventing forward gears being selected..

  • Like 1
Posted

Yeah that's the thing. I haven't looked in the book but that's an interlock between forwards and reverse, so you can only engage one at a time, and the other's locked out. It might be keeping forwards locked out.

When it shouldn't.

Posted

They all have something a little different but does the same thing, my honda has a button on the  brake lever pull the brake lever push the button and shift to reverse, my yamaha has a knob you turn and hold it and then shift to reverse, my suzuki actually has a shif lever with high, low, and reverse, i actually like that better, but they all are cable operated to move the interlock.

Posted

I figured it out, the linkage was out of adjustment. It shifts fine now. Kind of hard to get out of reverse, but I can live with that. Thanks for all of the suggestions!

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