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Kaufjm(at)AOL.COM
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 Posted: Wed Oct 25, 2006 10:13 am Post subject: Electrical question |
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I am having a problem with my 912ULS running rough. I've been every where, checked for broken wires on my ignition modules, coils everything I can think of. I've been through the carbs as well. I did find something on my ignition switch that was supplied with the engine kit. It's the A-510-2 keyed left-right-starter switch. There is a jumper that's on terminal 1. Going back over the instructions it says jumper used with impulse coupling. I assume that is what the 912 has... The other thing is there is no ground wire to the switch as indicated by the instructions, Could this cause a problem?
Thanks!
[quote][b]
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dcsfoto
Joined: 24 Aug 2006
Posts: 120
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| Posted: Wed Oct 25, 2006 2:23 pm Post subject: Re: Electrical question |
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take the jumper off only a mag has an impulse coupling
912s use a type of electronic ignition
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lcfitt(at)sbcglobal.net
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| Posted: Wed Oct 25, 2006 3:26 pm Post subject: Electrical question |
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These can be difficult to track down. The easiest place to start would be
to check the plug wires. The ends screw into the coil modules as well as
the spark plug terminals. If there is any corrosion there it can affect the
spark. Some have cut .5" off the ends and re-attched the wires with
success.
A friend had significant roughness on the way to Oshkosh a couple of years
ago and was able to buy a new module there by factory recommendation - it
was a very expensive affort in futility as after installing the new one,
there was no improvement.
What he eventually found was an intermittant fault deep in the shielded
bundle of wires coming from the stator - on the stator side of the
connectors.
Other than these issues, I don't have any real experience. If you would
like to talk to Larry, contact me off list and I will give you his phone
number. He's a pretty sharp guy.
Lowell
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