Suzuki outboard help please!
#8031898
12/26/23 10:10 PM
12/26/23 10:10 PM
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Joined: Dec 2006
Posts: 11,336 Oregon
beaverpeeler
OP
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OP
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Posts: 11,336
Oregon
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So today on the river my outboard started losing power and eventually quit. When I lifted the cover I found the oil cap laying off to the side but the engine still had oil and none was splashed out. There was hot burnt smelling smoke emitting from the motor.
So the question: Does the oil system for this 4 stroke operate OK without the oil cap off or does the cap keep the system pressurized? Am I likely SOL???? (Its a 15hp Suzuki 4-stroke).
I just had the outboard serviced a few weeks ago and I hadn't touched the oil cap.
Last edited by beaverpeeler; 12/26/23 10:11 PM.
My fear of moving stairs is escalating!
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Re: Suzuki outboard help please!
[Re: beaverpeeler]
#8031913
12/26/23 10:23 PM
12/26/23 10:23 PM
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Joined: Sep 2020
Posts: 997 Missouri
Osagian
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Missouri
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So today on the river my outboard started losing power and eventually quit. When I lifted the cover I found the oil cap laying off to the side but the engine still had oil and none was splashed out. There was hot burnt smelling smoke emitting from the motor. Confused here. Motor still had oil and NONE was splashed out. So the oil level was FULL then because NONE splashed out. Right?
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Re: Suzuki outboard help please!
[Re: beaverpeeler]
#8031999
12/26/23 11:47 PM
12/26/23 11:47 PM
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Joined: Dec 2006
Posts: 11,336 Oregon
beaverpeeler
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SO, I just had the outboard serviced at the Suzuki shop. Oil level was fine... I saw it myself. Oil level is still fine after the motor lost power but smoke emitted form motor and it smelled burnt. When motor was serviced a new impeller was installed and its been peeing just fine. I previously had an issue after it was serviced but it turned out that the tank and hose were the issue and it wasn't pulling gas right. New tank and hose so that's not it.
After the engine died I cranked it and it still cranked OK but I didn't want to start it for fear of possibly doing more harm.
So my question is does anybody know whether the oil cap has to be on tight to keep things pressurized? In other words was the oil circulating properly?
My fear of moving stairs is escalating!
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Re: Suzuki outboard help please!
[Re: beaverpeeler]
#8032040
12/27/23 12:28 AM
12/27/23 12:28 AM
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Joined: Jun 2007
Posts: 16,150 Tennessee
Scuba1
"color blind Kraut"
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"color blind Kraut"
Joined: Jun 2007
Posts: 16,150
Tennessee
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What size engine is it ...... the larger ones hav a O2 sensor and if the oil cap is off the blow by coming out of there can be enough to confuse the ECU ..... had one with a tiny crack in the exhaust manifold that played up because of that. You could hardly see that crack but it was enough to get it to sulk.
Let's go Brandon
"Shall not comply" with morons who don't understand "shall not infringe."
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Re: Suzuki outboard help please!
[Re: beaverpeeler]
#8032043
12/27/23 12:34 AM
12/27/23 12:34 AM
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Joined: Dec 2006
Posts: 11,336 Oregon
beaverpeeler
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It's a 15hp 4-stroke. I think it's an 2003 model year. The cap was off but no oil had blown out of the top.
Last edited by beaverpeeler; 12/27/23 12:35 AM.
My fear of moving stairs is escalating!
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Re: Suzuki outboard help please!
[Re: beaverpeeler]
#8032046
12/27/23 12:37 AM
12/27/23 12:37 AM
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Joined: Dec 2006
Posts: 8,544 NWWA/AZ
Vinke
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NWWA/AZ
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I will be down there tomorrow if’s ya need a tow
Slightly used Shoes 4 sale,,,,,,May special,,, Act Now... Free Sock with every purchase
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Re: Suzuki outboard help please!
[Re: beaverpeeler]
#8032057
12/27/23 01:03 AM
12/27/23 01:03 AM
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Joined: Feb 2019
Posts: 1,553 Saucier, Mississippi Harrison ...
turkn8rtrapper
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trapper
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Saucier, Mississippi Harrison ...
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Sounds like it over heated and it should have lost power first then quit. That is a safety feature. Wouldn't think the oil cap would be the issue as the oil on that end shouldn't be under pressure. You may have picked up something on the water intake or there could be an issue with the new impeller or something with the install on the new impeller. I hate to say it but I would first call the service dealer and explain what happened and if it is the first time you've run it since the service they would probably be seeing it again. I have a 16 200 Suzuki 4 stroke and I found the symptoms you are describing while I was trying to flush it and realized I didn't have enough flow. I have them change mine every 50 hours.
"Skin that smokewagon and see what happens"
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Re: Suzuki outboard help please!
[Re: beaverpeeler]
#8032059
12/27/23 01:08 AM
12/27/23 01:08 AM
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Joined: Dec 2006
Posts: 11,336 Oregon
beaverpeeler
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The loss of power was gradual over the course of about a mile going upstream. But I've probably put in about 35-40 hours on the water since it was serviced. I plan on taking it in tomorrow morning to see what can be found out. It's a drag 'cuz I've got traps out that I set on the 24th.
Last edited by beaverpeeler; 12/27/23 01:10 AM.
My fear of moving stairs is escalating!
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Re: Suzuki outboard help please!
[Re: beaverpeeler]
#8032130
12/27/23 07:56 AM
12/27/23 07:56 AM
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Joined: Nov 2007
Posts: 9,886 St. Cloud, MN
trapperkeck
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St. Cloud, MN
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My Suzuki 25hp did the same thing to me awhile back. Except the system warning light and beeper came on indicating it was overheating. I shut it down and waited a bit and fired it back up, ran fine the rest of the day. I'm thinking, either ice blocked the the impeller or some junk plugged the water intake. Anyway, I doubt you can hurt the motor by running it. It's either OK or smoked. I'd run it and see what happens.
"The voice of reason!"
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Re: Suzuki outboard help please!
[Re: beaverpeeler]
#8032275
12/27/23 10:58 AM
12/27/23 10:58 AM
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Joined: Dec 2006
Posts: 2,597 coastal ny
gcs
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coastal ny
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I always run a remote Racor gas/water removal filter, to guard against fuel issues. Even if your tank and hose is newish, the internal lines may be failing from Ethanol, check all the internal fuel filters too.
I've seen "mechanics" that have installed new water pump impellers backwards, causing poor water flow, the (This word is unacceptable on Trapperman) is an ok indicator but not foolproof.
The oil cap is a screw on with an O ring, they don't come off by themselves, If the cap is needed "on", then the service guy forgot to screw it back on.
It's a small engine, I'd take it back and have them explain exactly what they did, and you explain your not happy and losing money.... good luck.
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Re: Suzuki outboard help please!
[Re: beaverpeeler]
#8032293
12/27/23 11:27 AM
12/27/23 11:27 AM
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Joined: Dec 2010
Posts: 11,217 Armpit, ak
Dirt
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Posts: 11,217
Armpit, ak
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The loss of power was gradual over the course of about a mile going upstream. But I've probably put in about 35-40 hours on the water since it was serviced. I plan on taking it in tomorrow morning to see what can be found out. It's a drag 'cuz I've got traps out that I set on the 24th. Just use your spare boat. Don't tell me..............
Who is John Galt?
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