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post #1 of (permalink) Old 11-20-2003, 07:07 PM
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1979 jag engine bogging down need help

Ok here it goes i bought a 1979 artic cat jag 340 last year i replaced alot of stuff in it and repainted it. When I go run the machine with the headlight it boggs down when i unplug the headlight it goes great but the plugs keep on fouling out they turn black and dry. And i cant keep the machine at idle the volatge reg is new and i checked the dc volts and it is at 12 or around that. when the light is unpluged It runs great. I have put so much time into this sled and i want to get it running for this winter so if anyone has any ideas for me and what i can check or fix please let me know or email me [email protected]

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post #2 of (permalink) Old 12-04-2003, 08:39 PM
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Re: 1979 jag engine bogging down need help

We have a 1980 Arctic Cat Jag 3000 and a 1981 Jag 4000 and haven't had any major problems with the electric system except that our '81 was blowing headlight bulbs last season.

We're just getting ours ready for the season and will try to help if we can.

post #3 of (permalink) Old 12-09-2003, 12:43 AM
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Re: 1979 jag engine bogging down need help

Mike, you need to take a good look at the wiring in the handlebars and down the steering post. It sounds like there is a short between the headlight circuit and the kill switch circuit that when you plug in the headlight acts like a kill switch.

The two systems are separate. Engine electrical is separate from lighting electrical. The two can function independant of each other... most all sleds are designed that way. You've got to have a wire shorting across the two circuits causing your problem.

Check the handlebar controls and kill switch area for any rubbed wires.

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