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Posts: 100
| Hey guys, Ive got a motor that will not run any longer... I went out this evening and things started off as normal. Backed the boat down the ramp started the motor and took off to hopefully meet up with a few fish. After fishing one spot we moved to another. When beginning to leave the second spot I tried to start the motor, however I had no luck. The motor I have is a 75hp Mariner from the very early 90's. When I took off this afternoon it ran flawlessly as usual when going to the first spot then it would not start. So after checking that it was getting gas and an hour long trolling motor ride it still will not start. Do any of you have any ideas what would make a motor all of the sudden not run? Thanks in advance. |
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Posts: 52
| Does it have a place for oil or do you mix the oil with the gas? |
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Posts: 32958
Location: Rhinelander, Wisconsin | Sounds electrical. Also, something very simple, make sure the kill switch is hooked up. |
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Posts: 2323
Location: Stevens Point, WI | I agree with Mr. Worrall, but the other simple thing I would ask is, was the throttle in neutral?
These may be no brainers, but after working for the rental department for a local marina all summer, I have never seen or heard so many maintenance calls saying there boat wouldn't start. Only to listen to the customer screaming at me telling me I needed to come out to where they were and fix there boat, only to find out there kill switch was not hooked up and the boat not in neutral. But let me tell, does it ever shut someone up after finding out it was something so simply as the kill switch and the throttle not being in neutral. But I would check that again. Maybe also check your connection to your starting battery. Are your battery connections from the motor on the bottom of the terminal? Those connections should be the first ones on the battery, that's where your going to get your best connection.
Edited by Merckid 8/20/2007 10:50 PM
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Posts: 572
| Merckid has good advice. Make sure the battery connections are clean and connection is tight. It is probably a good idea to clean connectors and battery terminals.
Recently a person had a weak battery or dead battery. Check battery to make sure it is fully charged. |
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Posts: 3514
Location: Elk River, Minnesota | I will share my experience with my 90 yamaha.....it would not start either, and it ended up just being a simple connection. What happened with mine is that it would run fine for a long time, but then when I went to start it again, it would not even turn over the starter...just dead nothing...no click even. Everything else worked fine (gauges, trim motor, aerator, bilge, etc). So....what I did was buy a 12 volt circuit tester, took off the plug wires from the plugs and had my wife turn the key as I tested connections. Ended up being a relay switch that will not allow the motor to start when it is in gear. I just had to clean a contact and away she went.
You may also want to check to see if you have an inline fuse that has blown as well. Mine has a fuse and that was the first thing I checked.
Hopefully you can find the problem without having to take it to a dealer and pay through the nose to find out it was something simple..
Good luck
Steve |
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Posts: 13688
Location: minocqua, wi. | if you don't have a charger hooked to your cranker battery and have aux things hooked to it and don't do long runs, you likely ran down the cranker. over time, if you don't run enough to recharge ... that battery will go down. just jump the cranker from a trolling motor battery and see if it's the cause ... then go buy a pro-mariner and hook up the cranker too.
good luck |
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Posts: 5874
| First of all, a little more info would be helpfyul. Does the motor turn over? Does it crank at normal speed? Does it try to fire at all? I assume this is a crburated motor? Could be a couple things. Battery/connections as mentioned. More common with the EFI motors, even though it will turn the motor over, it may not have the juice to fire ignition.
Could be the stator, or a coil pack? Kill switch set tripped or just bad?
Good luck with it. |
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Posts: 100
| I checked all the obvious things as we were praying for the minkota to make the mile or so journey back. Kill switch was in the correct position. Motor was in neutral, ball was firm, there was a good connection with the battery. What I got as a response from the motor was, It would crank and turn over but it did not sound like it even thought about wanting to start. It seemed almost exactly like it was out of gas, which it wasnt. It is oil injected by the way. After speaking to a friend of mine he thought it may be something with the ignition. Any thoughts?
Edited by MuskyTrap 8/21/2007 12:23 PM
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Posts: 550
Location: So. Illinois | I had the same problem with my boat. Turned out the throttle position switch was loose. This is a microswitch that was moounted on the back side of my throttle handle. This is the switch that closes when you are in nuetral allowing you to start the boat. I had to reach under my gunnal cap to feel the back side of my throttle to find the switch. Once I found it by feel, I could tell the position switch was loose. A few turns with a jewelers screwdriver and I was back in business.
Jerry |
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Posts: 100
| Im going to check everything over in the morning again and see what I can come up with. Thanks for all of the help so far. Im also going to contact an outboar service center and see if they have any ideas. Ill post up with some results. Thanks again guys! |
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Posts: 3514
Location: Elk River, Minnesota | Probably one of the obvious things you checked, but could it be possible you have some fouled plugs and they just need to be replaced?
If it's turning over, your ignition switch is working so it is after that somewhere. I'd say pull the plugs, test for spark. If no spark, it would need to be traced back further. Plugs are cheap preventative maintenance anyway, so taking a new one when you test for spark would be easy and inexpensive.
Something to try at least...
Steve |
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Posts: 76
Location: Bartlett IL | Sounds like the stator, which is under the flywheel, has failed. Same thing happened to a friend except he was at the dock rather than the middle of the lake. Motor would crank but no spark.
http://www.marineparts.com/partspages/Outboard/outboard8.htm shows what it looks like. |
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Posts: 100
| Thanks again, I checked the motor, it appears to be getting gass but no spark... I changed the plugs this morning just to be on the safe side and trying to uncover a dummy mistake. Im going to bring it somewhere soon, I just cant take not having a boat that works any longer. Im going to call around and see what thelocal mechanics have to say. Thanks a lot guys. Only on a site like this will you recieve the help like that. |
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Posts: 518
Location: Cave Run Lake KY. | Check the ground wire on the motor. |
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Posts: 100
| Stator was bad... Turns out Mercs switched to a one speed stator and unfortunately this one has a two speed stator, one being a low speed and one being a high speed. With labor parts and whatever else thrown in I get to flip a bill of 450$ |
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Posts: 100
| Thats right! Ill be back after them tomorrow. Gonna head out at one and fish until the cows come home... Its gonna feel good to have the tuffy back again! |
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