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Old 11-28-2004, 03:29 PM   #1
snowhack
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:bash: Well as recomended by a few of you, and thank you by the way, I checked out my MPEM for my no spark problem after my rebuild. No problems. Strong spark when put on a similar machine. So now I have to check to see if I did a "you dumb a$$" By which I mean pinched a stator wire, forgot a plug, something dumb like that. I'm going to start at the stator area and work toward the MPEM. Check the coil, regulator, etc... I'll keep you posted.
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Old 11-29-2004, 07:59 AM   #2
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Let us know,when you figure it out. Maybe a forgotten ground?
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Old 11-29-2004, 03:50 PM   #3
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Ok.. this is what I found. The stator was damaged on one of the winds (fingers). I'm guessing I put a little to much of the puller bolts through the stator can and it rotated when I was torquing the puller and it scraped the stator winds. Would this little of damage make a no spark condition? In case the pic is to fuzzy....The plastic cover is damaged and wire is exposed and some of the windings are severed.
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File Type: jpg strator_400_pix.jpg (15.7 KB, 23 views)
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Old 11-29-2004, 03:53 PM   #4
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Quote:
Originally posted by snowhack@Nov 29 2004, 04:12 PM
Ok.. this is what I found. The stator was damaged on one of the winds (fingers). I'm guessing I put a little to much of the puller bolts through the stator can and it rotated when I was torquing the puller and it scraped the stator winds. Would this little of damage make a no spark condition? In case the pic is to fuzzy....The plastic cover is damaged and wire is exposed and some of the windings are severed.
[snapback]368950[/snapback]

Yes this would be your no spark problem.

I did the same thing when I rebuilt my boat motor last summer, no one ever warns you not to thread the bolts in too far!

-John
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Old 11-29-2004, 03:55 PM   #5
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looks like you have found your smoking gun. I have experienced no spark on MPEM equipped rotax marine stators when water infiltrates the windings even after they are totaly dried out.
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Old 11-29-2004, 08:09 PM   #6
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Wow is that a b!#$h or what? Bruce at Pioneer Perf. said the same thing. I didn't have a shop manual, but I hear it doesn't mention that anyway. You live you learn I guess. I was careful to feel for the bolts contacting the stator and not to thread the bolts into it, but it rotated just enough and into it it went. $223.00 in a half inch turn of the crank. Nice! :bash: So anyone out there with the same problem (no spark) if you reassembled the stator assembly before your problem look at it real quick and rule this out. Thanks guys.....
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Old 11-30-2004, 10:46 PM   #7
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Quote:
Originally posted by snowhack@Nov 29 2004, 08:31 PM
Wow is that a b!#$h or what? Bruce at Pioneer Perf. said the same thing. I didn't have a shop manual, but I hear it doesn't mention that anyway. You live you learn I guess. I was careful to feel for the bolts contacting the stator and not to thread the bolts into it, but it rotated just enough and into it it went. $223.00 in a half inch turn of the crank. Nice! :bash:* So anyone out there with the same problem (no spark) if you reassembled the stator assembly before your problem look at it real quick and rule this out.* Thanks guys.....
[snapback]369087[/snapback]


It sure does suck, been there done that. I know that it problably wont happen again though, its always on my mind now.

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