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Author Topic: oppy arc 6624 flywheel  (Read 4675 times)

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Offline PJG56

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oppy arc 6624 flywheel
« on: January 22, 2012, 09:58:36 am »
Put new 6624 arc flywheel on 42 opp.will not run,set air gap multiple times from.010to.o44,and every where in between,still wont run,timing in stock position,magnet indexted to keyway same as stock wheel,changed mags with all new briggs parts known to be good,put stock flywheel back on set air gap .010 fires right up runs like a champ.Anyone got any ideas other than faulty magnet in new flywheel. THANKS PAUL
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Paul Guptill  (oppy) #238modX
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Offline zach87cp

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Re: oppy arc 6624 flywheel
« Reply #1 on: January 22, 2012, 10:22:16 am »
is it getting spark with the arc wheel.
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Offline PJG56

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Re: oppy arc 6624 flywheel
« Reply #2 on: January 22, 2012, 11:04:27 am »
NO............
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Paul Guptill  (oppy) #238modX
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Offline Huffy044

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Re: oppy arc 6624 flywheel
« Reply #3 on: January 22, 2012, 11:16:49 am »
I'm not a oppy guy, but I do know a coild will go bad just sitting, possibly both decided to dump at the same time? Also did they ever come with points? possible point coil instead of a magnatron?
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Offline FlatheadPuller

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Re: oppy arc 6624 flywheel
« Reply #4 on: January 22, 2012, 11:24:30 am »
A magnet cant really be "bad" if it still has a magnetic pull to it. But if you test ran it with the same coil and your 100% sure the coil was installed correctly both times then logic states there must be something up with the flywheel.
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Offline sporty

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Re: oppy arc 6624 flywheel
« Reply #5 on: January 22, 2012, 11:27:22 am »
Is it possible for the magnet and counterweight to be switched?  Make sure it is a magnet in there too.
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Re: oppy arc 6624 flywheel
« Reply #6 on: January 22, 2012, 11:41:43 am »
Or the kill wire coming off the coil is grounded....
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Offline MowJoe

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Re: oppy arc 6624 flywheel
« Reply #7 on: January 22, 2012, 11:48:48 am »
Check this link out it may be your problem broken magnet
Quote
   
Re: problems with arc flywheel
« Reply #25 on: May 19, 2009, 07:21:37 PM »
Quote
Right No harm no foul. I wasn't trying to short change ya. I guess it could happen to anyone. I forgot the oil slinger once myself. I just got lucky and realized it when I was pouring in the oil.

But anyhow. I checked the polarity and it's correct. Tom says it should be NORTH (+) in the center and SOUTH (+) on the edges, and that's what I have, but still no fire. Also he mentioned that the magnet could be broken, and you cannot tell that because what we are seeing on the outside is not the magnet, but a steel cover to protect it. Tom also said that you could not mistake the magnet because it is coated in tin. In other words it's really shiny. Another easy way to test the magnet's polarity is with another flywheel. Line up the magnets and they should repel each other.

OK with that said I put the factory wheel back on, and presto I have fire, so that leaves 1 thing that could be wrong. A broken magnet.
http://www.heymow.com/index.php?topic=10682.15
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Offline PJG56

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Re: oppy arc 6624 flywheel
« Reply #8 on: January 22, 2012, 11:51:16 am »
didnt have kill wire hooked up eliminated that&flywheel magnet position.Just get slight yellow-orangish spark with arc wheel
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Paul Guptill  (oppy) #238modX
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Offline THawley08

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Re: oppy arc 6624 flywheel
« Reply #9 on: January 22, 2012, 12:01:23 pm »
set it at .040 and change the coil out.
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Offline PJG56

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Re: oppy arc 6624 flywheel
« Reply #10 on: January 22, 2012, 04:17:32 pm »
Been there done that
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Paul Guptill  (oppy) #238modX
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Offline nip 19

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Re: oppy arc 6624 flywheel
« Reply #11 on: January 22, 2012, 06:26:26 pm »
I had that problem once  fought with it forever until I bought a new coil I wouldn't leave a plug out of the equation either    I thought it was everything but the coil
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Offline Rooster

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Re: oppy arc 6624 flywheel
« Reply #12 on: January 22, 2012, 07:52:53 pm »
Quote from: PJG56 on January 22, 2012, 09:58:36 am
...put stock flywheel back on set air gap .010 fires right up runs like a champ.

If your engine is not running, then you change a part out and it starts running....pretty safe bet the part you took off is not working correctly, and the parts still on the engine ...WHILE IT IS RUNNING....are working correctly.

I know we never want to believe the expensive, brand new part is the culprit, but it happens.
Call ARC, I am sure they will get you going.
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