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I replaced the solenoid today and now it turns over like it always has, BUT IT WON'T START AND RUN.
Tries to start, but stumbles and then dies.
At one point, I thought flooded, so took plugs out, dried them and put back in and I did get it to start and run for about 5 minutes at higher speed (but the speed was waivering), but it stalled when I tried to idle down.
Wouldn't restart. So, I put in new spark plugs, changed the fuel filter and checked out the primer bulb. Still won't start and run. Starts, runs rough and stumbles for 2 or 3 seconds and then dies. Lots of gas in the fuel filter.
Probably a fuel issue of some sort, but what?
Tomorrow I will check the inside of the hoses from the tank to the fuel pump to ensure they are not breaking down.
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Glad the motor is starting now.
The rough running problem. Yes, sounds like a fuel issue.
i) could be air leak or air in fuel line ii) make sure the gas tank cap is vented iii) try new fresh fuel
You already cleaned the plugs and fuel filter, so those should be ok.
It's a four stroke, so usually run good, but on my 2 stroke, my outboard was running rough as well and stalling at low idle. I had to clean and rebuild the carbs. It runs good now, almost purring. But have to take it to the lake for a true test at all speeds, to confirm it's fixed. When I find the time, someday before summer is over...
Carb cleaning and rebuild was quite the chore and delicate work.. Hopefully you don't have to go there, but it is part of general maintenance, esp for older 2 strokes.
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What kind of fuel line you have Sdcaller? Several friends of mine and myself had issues with grey Mercury lines. I have had an injector fouled on one cylinder. Rough start to no stsrt. 3 year old Yamaha. Fixed under warranty. No issues with black lines doesn't matter Mercury or Yamaha.
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Try running it on new fuel not just your old tank topped up. It sounds like a bad fuel issue. This ethanol fuel wont store for more than a couple months.
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Maybe injectors, my son was struggling with his 115 YAMAHA, was running very rough. Checked pressure at heads, fuel, fuel filter, primer bulb, all the things it sounds like you have checked. Had injectors re built and presto, runs like new in 2004.
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Marina has not been able to fit me in yet, so I have done more checking and experimenting on my own.
New plugs, new fuel filter, checked/cleaned all fuel lines on motor, sprayed carb cleaner into the fuel pump.
Checked fuel tank pick ups and all are clean.
Did discover fuel line from the tank to the motor, was full of "varnish". Decided to replace fuel line and primer bulb. Bought the new Mercury line for a 1998 motor or newer (mine is a 99), but the connectors do not fit my motor or the fuel tank?
Off to the Marina tomorrow to see if I can get the right fuel line. If not, I will buy plain fuel hose, a new primer bulb and remove the connectors from my old fuel line and make my own.
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Sheesh Ralph, what a pain.! I have often said that there's a thin line between a challenge and a PITA. This one is waay over that line. Lucky that you're a patient guy!
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QUOTE (Knuguy @ Aug 11, 2024 - 07:39 pm)
Sheesh Ralph, what a pain.! I have often said that there's a thin line between a challenge and a PITA. This one is waay over that line. Lucky that you're a patient guy!
Hey Harold
If you are a fisherman, you have to be a patient person.
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QUOTE (sdcaller @ Aug 11, 2024 - 01:13 pm)
Marina has not been able to fit me in yet, so I have done more checking and experimenting on my own.
New plugs, new fuel filter, checked/cleaned all fuel lines on motor, sprayed carb cleaner into the fuel pump.
Checked fuel tank pick ups and all are clean.
Did discover fuel line from the tank to the motor, was full of "varnish". Decided to replace fuel line and primer bulb. Bought the new Mercury line for a 1998 motor or newer (mine is a 99), but the connectors do not fit my motor or the fuel tank?
Off to the Marina tomorrow to see if I can get the right fuel line. If not, I will buy plain fuel hose, a new primer bulb and remove the connectors from my old fuel line and make my own.
SDC
Good diagnostics for your outboard issues.
I changed my fuel line & bulb a couple of years ago and bought the end connectors.
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