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Started By
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Posted on 11/26/22 at 2:00 pm to maisweh
Seems like i may have had a similar issue with a 115 2 stroke. Cranked and idled ok, but kinda stalled out when i punched the throttle to hop up on plane. Only happened to me a few times on one fishing trip. Once i got up on plane, I ran the hell out of it hard and problem solved.
Posted on 11/26/22 at 2:06 pm to maisweh
Sounds like fuel pump. But I’d get rid of the oil injection and mix yourself.
Posted on 11/26/22 at 2:19 pm to Capt ST
Fuel pumps on Amazon are like 40 bucks. I just need to find the right part number
I'll start with that
I'll start with that
Posted on 11/26/22 at 3:50 pm to Capt ST
I was cautioned never to delete the oil injection. Someone told me that the oil is mixed differently based on rpm. Not sure if that's true or if it would even matter that much.
Posted on 11/26/22 at 5:14 pm to Bobandus
Update.
Took oil tank off and this hose was disconnected
[url=https://postimg.cc/8FT2sW0N]
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Took oil tank off and this hose was disconnected
[url=https://postimg.cc/8FT2sW0N]

Posted on 11/26/22 at 6:16 pm to maisweh
Not sure if it's a vacuum hose or what, but I pushed it back onto thr barb it was coming from
Posted on 11/27/22 at 12:55 am to Bobandus
That recommendation came from the guys at Breaux and Daigle. Half the Yamahas in their yard were from oil injection issues.
Posted on 11/27/22 at 7:48 am to maisweh
quote:
Not sure if it's a vacuum hose or what, but I pushed it back onto thr barb it was coming from
So, did that change how it ran?
Posted on 11/27/22 at 8:22 am to maisweh
Drunken 2 stroke outboard repairs. THIS is a proper OB thread.
Did that fix it?
Did that fix it?
Posted on 11/27/22 at 12:22 pm to DownshiftAndFloorIt
Going on a quick meat haul with the little one. Will report back.
Posted on 11/27/22 at 1:10 pm to maisweh
Update.
Revs fine with fast idle to 5k rpms, won't turn more than 2k when under a load.
Revs fine with fast idle to 5k rpms, won't turn more than 2k when under a load.
Posted on 11/27/22 at 1:33 pm to maisweh
Carburetor removal denial syndrome.
Prescribe 6 beers followed by carburetor removal, flush, jewg all the jets out with wire pulled from a wire brush. Reassemble. Run shite out boat.
Prescribe 6 beers followed by carburetor removal, flush, jewg all the jets out with wire pulled from a wire brush. Reassemble. Run shite out boat.
Posted on 11/27/22 at 5:11 pm to DownshiftAndFloorIt
Nattys were on sale,9 bucks for a 15 pack. Wife is mad im spending all this time trying to track down the issue
5 year old caught 5 trout and my leg. shite hurt.
5 year old caught 5 trout and my leg. shite hurt.
Posted on 11/27/22 at 7:53 pm to maisweh
Update update.
4 beers. Actual mechanic friend came. Thinks it's a burnt cylinder due to whatever that hose is not being connected and running a cylinder lean.
Messaged guy who cleaned and hooked back up carberator. Yet to respond
4 beers. Actual mechanic friend came. Thinks it's a burnt cylinder due to whatever that hose is not being connected and running a cylinder lean.
Messaged guy who cleaned and hooked back up carberator. Yet to respond
Posted on 11/27/22 at 8:08 pm to maisweh
quote:
Nattys were on sale,9 bucks for a 15 pack
Where? Asking for a friend.
Posted on 11/27/22 at 8:46 pm to REB BEER
quote:
Where
Rouses.
Update
Dis MF saying the hose between the bottom carb and cylinder popped off while I ran it in my yard.
Posted on 11/27/22 at 9:11 pm to maisweh
So now let's get down to it.
That hose was disconnected
Ran it for a while, maybe 15 minutes total if that like that.
Revs fine when not under a load
Will not go over 2,000 RPMs under a load
Goes in reverse fine.
So per by natty light Google searches it could be
Burned up cylinder
Fuel pump
Some other fuel delivery issue.
Paging motorboat
That hose was disconnected
Ran it for a while, maybe 15 minutes total if that like that.
Revs fine when not under a load
Will not go over 2,000 RPMs under a load
Goes in reverse fine.
So per by natty light Google searches it could be
Burned up cylinder
Fuel pump
Some other fuel delivery issue.
Paging motorboat
Posted on 11/27/22 at 11:11 pm to maisweh
Yamaha are by far the most overrated thing on the planet, there is a guy in Louisiana who rebuilts hundreds of them a year that told me they lifespan of a typical 4 stoke is 8 years. My old Seahorse did twice that. They have horrible corrosion issues
Posted on 11/28/22 at 7:56 am to maisweh
Clean the VST filter, my ox66's had the same symptom every time the vst was clogged.
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