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Thread: boat cranks but wont start
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03-18-2013, 11:09 AM #1
I'm pretty sure that's what he has done, but something is goofed up in the wiring from where the prior owner put in the push button start. Who knows what that person did either under the helm or back at the engine?
You might be able to track down the prior owner and get some idea of what they did. Otherwise, I think you're going to need to rip it all out as Jake stated. It's something I might not take on so that's why I suggested taking it to ATL Marine.
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03-18-2013, 11:12 AM #2Junior Member
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- Vidalia, GA/Lake Oconee
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03-18-2013, 03:06 PM #3Junior Member
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Picture attached. Thanks
boat 002a.jpg
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03-18-2013, 11:23 AM #4Junior Member
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boat 002a.jpg
Hope this works.
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03-18-2013, 01:18 PM #5Senior Member
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My last boat did that. I found that during the start function, voltage went through a resistive wire. When the boat started and you went to the on position the voltage went from the resistive wire to another wire that was fused under the dash. These wires were feeding the coil. My coil was shorted. Got a new coil and replaced the fuse and all was fine. I have no idea if this will help you or not. This was on a 1985 Mercruiser inboard/outboard.
Jack Beams
'05 Outback DD
325HP EFI Indmar
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03-18-2013, 03:19 PM #6Senior Member
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I'd check the oil pressure switch, generally the boat will run while you have the starter engaged, and stops when you release the key, the switch cuts power to the fuel pump...
https://forum.moomba.com/showthread....5930#post25930
I'd bypass pass it to eliminate it, probably explains why the issue was intermittent. You should get the manual and verify the wiring...Last edited by parrothd; 03-18-2013 at 03:22 PM.
http://www.instgram.com/jlyons30
2002 Moomba Mobius LSV - Sold
2006 Moomba Mobius LSV - Sold
2017 Moomba Craz - Enzos, Lead
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03-18-2013, 03:51 PM #7Junior Member
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This sounds promising. It didn't know what to look for while I was at the lake this weekend. Makes sense.....I forgot to mention that I don't get the 12 volts to the fuel pump when the key is in the ON position.
I'm a couple of hours away but wish i could go right now and try this.
Fogot to say a BIG...........
THANK YOU!Last edited by Bend; 03-18-2013 at 03:57 PM.
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03-19-2013, 11:52 AM #8Senior Member
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Wiring diagram for LSV/Kamerbra probably the same for all early models.
http://www.parrothd.com/moomba/2002-moomba%20wiring.pdfLast edited by parrothd; 03-19-2013 at 12:01 PM.
http://www.instgram.com/jlyons30
2002 Moomba Mobius LSV - Sold
2006 Moomba Mobius LSV - Sold
2017 Moomba Craz - Enzos, Lead
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05-14-2013, 03:19 PM #9Junior Member
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- Sep 2012
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- Vidalia, GA/Lake Oconee
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parrothd,
Finally got back to the lake.
replaced the oil sensing unit. Still no luck. Everything remains the same. I get fire from the engine in start mode but engine dies when in "on" mode on ignition.
Checked wiring as best as I could.
Could I have replaced with the wrong ignition switch? (The fuel pump does not cycle in the "on" position but has power in the "start" position.
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05-16-2013, 09:42 PM #10
boat cranks but wont startr
If the pump doesn't prime when you turn the key from off to on (not all the way over to hit the starter) then your problem is in the wiring. It should prime for a couple seconds then stop until you start it, then it stays on. This would explain why it shuts off when start is released, 12v to the fuel pump is being cut too. Somewhere down the line power to the fuel pump and likely the ignition are wired incorrectly.
2018 Murder Max
2008 Outback V-Bought new; sold in 2018