
kentucky_backwoods
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10 GoodAbout kentucky_backwoods
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- Birthday 08/27/1987
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1989 Big Bear 350 Won't Start
kentucky_backwoods replied to kentucky_backwoods's topic in Yamaha ATV Forum
Here is the update: Rebuild kit completed on the carb, everything looks good and nothing is sticking or worn. When I push start it turns over, and over, and over, but no fire. The spacer between the jug and carb "breathes" each time it turns over. It swells up, which makes me think there is too much air coming in. Problem is, I have tried the pilot screw in a number of different positions but that doesn't change anything. I checked both valves and valve clearance, the timing chain was off one link but I fixed that too. Occasionally if I sit and jiggle the throttle it will act like it wants -
1989 Big Bear 350 Won't Start
kentucky_backwoods replied to kentucky_backwoods's topic in Yamaha ATV Forum
I was able to find the problem, I had to test each wire individually and found a spot where the wire had gone bad. I'm assuming that it was being bypassed when the wench was on it. It took me a while but I figured it out. I have another problem now though....I can't get the s.o.b to start, even when using starter fluid. It just wont turn over. The carb is fine, it's getting gas and nothing is stopped up. The spark plug is fine, it's getting a spark. I am going to check the timing chain tomorrow and probably the valve. Does anyone have any other suggestions? -
1989 Big Bear 350 Won't Start
kentucky_backwoods replied to kentucky_backwoods's topic in Yamaha ATV Forum
Thanks for the response. It is in neutral and battery has a good charge. When I turn the key, none of the lights even come on, it's almost like it doesn't know that I've even switched the key on (which wasn't a problem before). I've got the two connections to the positive terminal and, per the diagram I have, two to the negative terminal. The thin wire from the positive terminal might be where my problem is...It has two in-line fuses, and runs back to the ignition switch. It is spliced in one spot, which might be where it runs to the regulator/rectifier. I don't think it's the ignition swit -
Hello everyone, I recently got an 89 Big Bear on a trade. This is my first atv that I've ever owned and I'm awfully green when it comes to everything. When I got it there was a front wench installed but the support welds were busted, so I took it off. Prior to taking the wench off I was able to use the push button start, but since then I haven't been able to use it. I followed the wiring diagram in the service manual and made sure that it was all wired correctly; the only difference is the two in-line fuses that were added to the red line which runs from the ignition to the Starting Circuit