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My 1st boat wonít start - 1996 Maxum 1700sr

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My 1st boat wonít start - 1996 Maxum 1700sr

Old 07-08-2020, 09:14 PM
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Default My 1st boat wonít start - 1996 Maxum 1700sr

I bought my first boat a few weeks back and thought it was going to be a fun, easy project. The boat sat for about two years without running before I got it but seemed to be solid. I put a new starter and battery in it, changed the oil, and threw on a new Oil filter. It fired right up and ran great the first day I had it on the lake. Ran it for a good 3-4 hours, turning it off and back on with no issue. Then the last time I tried starting it on that first day, it wouldnít fire back up.
I have since had the carb rebuilt, changed the spark plugs, changed the fuel filter, and changed the fuel line. Also threw some of that enzyme fuel treatment in it last time I refilled the tank. After It sits for a day or two, the boat will usually fire right up, but if I turn it off, I canít get it to start back up.
I put a new fuel line on it tonight, as a little fuel was leaking out at the carb connection. Now the connection is good on carb but I noticed fuel is now leaking out of the fuel pump. I took fuel pump apart, and put it back together real slow and steady, making sure everything was put back properly and was tight. Still having a minor leak around fuel pump and Boat wonít start.
Iím no boat mechanic, and have mainly just been going off YouTube on how to do this stuff, so canít be 100% certain I did all of the above mentioned things correctly, but Iíve been going slow and double or triple checking everything Iíve done, so I donít think there are any issues with what Iíve done.
At this point, Iím at a loss. Really hoping to get it out in time to enjoy the summer and any of the boat shops around me canít even look at it until around fall time. Plus itís a pride thing at this point - feel like Turing it over to a shop would be giving up on myself. Any advice or recommendations would be genuinely appreciated. Thanks in advance for the consideration and reading all this
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Old 07-08-2020, 09:20 PM
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first thing is to fix the fuel leak or you could have a fiery explosion.after that when it won,t start check for spark.it sounds like it could be something electrical.
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Old 07-08-2020, 09:37 PM
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Definitely sound advice, Mike. I appreciate that.
The fuel pump wasnít leaking early. Iíve been avoiding starting since the line going into the carb was leaking. Just replaced the fuel line tonight and it fired right up, then I noticed fuel pump was leaking, or maybe the connection from the line to the pump. After reassembling fuel pump, and noticing it was still leaking, I didnít try starting again.
If you were me, what would your next move be?
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Old 07-08-2020, 09:38 PM
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I think spark is good. Itís got new plugs, new starter, and new battery. Plus it will always start the first time after sitting for a day +. It just struggles starting after shutting off then firing back up
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Old 07-08-2020, 09:40 PM
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Like mike said fix the danger first right from start to completion. Then move to electrical and take your time. Don't rush. Check all wire connections and or replace if in question. A simple test light and volt/amperage meter all you really need. I'd guess a ground or lack of but no way of knowing for sure.

Fuel and spark equals START Typically!!!

good luck
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Old 07-08-2020, 10:01 PM
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What motor and carburetor ?

Go gat a lisle sealed spark tester for under $20at any part store.





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Old 07-08-2020, 10:05 PM
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What did you use for fuel line ? Can you take a pic of it installed - ie good engine shot.

Very easy to burn yourself, your boat, and anything nearby with fuel leaks in a boat. Much different than a car. Ie: enclosed engine compartments and etc, even with engine cover up. Fumes sibnk. Boats have sealed bottoms. carís donít.
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Old 07-08-2020, 10:06 PM
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If it has sat and the Fuel pump is leaking, it may not be holding prime and delivering proper pressure? If you are changing it, put a marine pump on as they do not leak into the bilge by design + CG certified

Is there fuel in the oil?

+1 on resolving the leak... a cup of fuel in the bilge is as dangerous as a gallon. Less than a gallon of fuel in the bilge of a wooden 35 cruiser on a hot day will erase anything that resembled a boat right down into the water line as the fumes fill the boat.
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Old 07-08-2020, 10:19 PM
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I have used all the specific parts for my exact boat. Itís a 3.0 mercruiser engine. Not letting me post a picture yet - says I have to make 10 posts first. Will upload picture as soon as possible
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Old 07-08-2020, 10:21 PM
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Sounds like I should replace the fuel pump either way and test the electrical connections?
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