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post #1 of (permalink) Old 01-15-2001, 09:48 PM
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arctic cat Kawasaki engine problems

Ok, i just bought a old arctic cat jag sled. It has a 398cc T7A400RS1A Kawasaki engine in it. It was overhuauld right before I bought it. I went to start the motor up, and it runs, but only the left cliynder is firing, I check to make sure the right cylinder is getting gas, it was. Then I checked the Plug for a spark. It has a spark, but not as strong as the Left side, but there's a spark.
I'm stumped, I can not figure out why the right clyinder is not firing, does anyone know anything about it?????
oh yeah, there is no igintion, so there are to hot wires comming out of the case, one goes to the 1 coil and one goes to the other. Are the coils suppose to be on the same wire, or is one of those hot wires comming out of the case goto the igntion for lights and such?? maybe that wire is going to coil and not give it enough power wo make a nice spark in the plug???

I really need some help

Thanks Paul

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post #2 of (permalink) Old 01-17-2001, 05:40 PM
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Re: arctic cat Kawasaki engine problems

I assume one spark is blue and the other is sort of white when you say weak? Just for the hell of it can you switch the wires? It could be that the weak side has a broken plug wire. Maybe just hurt enough to not let all of the juice through. GL

post #3 of (permalink) Old 01-18-2001, 07:40 AM
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Re: arctic cat Kawasaki engine problems

There should be a main wire going to the coil, then there is a jumper wire going to the next one from the first coil. Check the compression on both cylinders! Good luck!

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post #4 of (permalink) Old 01-18-2001, 10:19 AM
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Re: arctic cat Kawasaki engine problems

I think your suspicions are correct one wire for both coils, the other wire for lighting. Before the andvent of digital ignitions the coils would fire twice per revolution of the crank. One cylinder would be on compression the other at the bottom of the exhaust stroke so it wouldn't matter. That's also why you can swap ignition wires between cylinders. I concure with above postings, swap ingnition wires between cylinders and try hooking the coils to the same output wire.

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