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Mariner 75hp #12259940 05/24/17 01:49 AM
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JMac-D Offline OP
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It's a 95 mariner 75, rebuilt the fuel pump /carbs 4 months ago. Ran great until Sunday, now it has a hard time getting on plane sometimes, it will run fine to one spot, next not want to get on plane. Could it be that fuel pump again?

Last edited by JMac-D; 05/24/17 10:22 AM.
Re: Mariner 75hp [Re: JMac-D] #12260062 05/24/17 03:17 AM
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OPTI Offline
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Sounds like a ignition problem....OPTI

Re: Mariner 75hp [Re: JMac-D] #12261351 05/24/17 09:54 PM
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Switchbox? Or? The motor idles great, it's once you put it under a load.

Last edited by JMac-D; 05/24/17 10:12 PM.
Re: Mariner 75hp [Re: JMac-D] #12261907 05/25/17 03:45 AM
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OPTI Offline
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Is it a 3 or 4 cylinder ....OPTI

Re: Mariner 75hp [Re: JMac-D] #12262041 05/25/17 11:46 AM
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3 cylinder

Re: Mariner 75hp [Re: JMac-D] #12263191 05/25/17 11:55 PM
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Compression came back 116-119 on all 3

Re: Mariner 75hp [Re: JMac-D] #12263462 05/26/17 02:51 AM
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Depending on the ignition system if it the old ADI ignition system it could be the switch box but that would effect the way it ran at all rpms. Could be also trigger it really hard to say. If it is the new style system with CDM this system does not have a switch box. Could be a bad CDM ....OPTI

Re: Mariner 75hp [Re: JMac-D] #12268920 05/30/17 11:38 AM
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Cleaned carbs/put new spark plugs. It's ran great so far,

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