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1997 Yamaha Kodiak 400 Rough Running

shasenplaugh

By shasenplaugh
in Yamaha ATV Forum

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shasenplaugh Newbie

shasenplaugh

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My 1997 Kodiak 400 just suddenly started running really bad. It sounds great in neutral, but as soon as you put it into gear it starts bogging down and cutting out real bad. I did find a hole in the intake and I replaced it, but that didn't help at all. Does anyone have any suggestions? I did take the carb apart and cleaned it and noticed that that wasn't the first time it had been apart. Thanks in advance for any help.

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shasenplaugh Newbie

shasenplaugh

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Ya, the float looked fine, but there was some other questionable things in it, but then again I don't know much about the guts of a carberator. It actually seems more like it's being constantly flooded and you can smell the gas. But again everything sounds fine in neutral. Even revving it up it sounds good. It's just when you put it in gear.

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DirtDemon Veteran

DirtDemon

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If there is a reverse rev limiter on that machine, it could be assed up, if the machine thinks it is in reverse somehow, this limiter may be kicking in. Other possibilities could be weak spark, improper valve adjustment, or some kind of carb problem. I would check all the simple basic stuff first, try a new plug, check the valves, timing etc... Also, check to see if the machine has a rev limiter that could be getting activated when you engage the forward gears, try to locate a sensor or switch that lets the machine know when it is in reverse. If you find anything, try to bypass the rev limiter somehow and see if that helps. I would recommend getting a repair manual, finding these things will be alot easier with one, they are good to have anyway.

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