Hello All,
This is my first message here, and I'm trying to diagnose a strange behavior displayed by my 2004 F115 outboard which is installed on a 22 ft pontoon boat.
The boat and engine are new to me, but only had one prior owner who ran the boat in sweet water only (Nebraska) and had 45 or so hours when I got it.
The symptoms are as follows:
Engine ran fine for the first four or five weeks we've had the boat. Revs nicely all the way to 6000 rpms and did not show any signs of issues at all.
This past week however, it began acting up. It would rev up to 4500 or so and then begin sputtering and dying down... it would not put out more than 3500 rpms or even less.
Cruised down to a cove and waited out for a while. Turned the engine off and on again, but the syptoms remained and the engine would still not do anything over 3000 revs. On top of this, when I pulled into the marina, the engine now refused to shut off... turning the key to the off position would do nothing, nor would the kill switch. I had to resort to taking the battery lead out to shut the engine down.
Tried several things after this, like slowly reving up but would not get more than 3000 rpms. After several attempts, the issue seemed to dissappear and the engine ran fine again for a little while (10 or 15 minutes) and then died down again and would not produce anything over 3000 once again. The key shut-off issue continued to appear intermitently during all this time.
I'm confused and puzzled here. I would have thought this had something to do with Fuel starvation, water in the fuel, clogged filter or something similar. Yet, this would not explain the engine's refusal to shut down (which could be independent of the revving issue) making me scratch my head here in disbelief.
Any hints or ideas regarding this would be greatly appreciated. The local Yamaha dealer says they have a 4 week wait to get to it, and the worst part is that they will not allow me to bring it to them in four weeks, they want us to drop it off and wait out without the boat.
Thanks in advance,
Andres G
This is my first message here, and I'm trying to diagnose a strange behavior displayed by my 2004 F115 outboard which is installed on a 22 ft pontoon boat.
The boat and engine are new to me, but only had one prior owner who ran the boat in sweet water only (Nebraska) and had 45 or so hours when I got it.
The symptoms are as follows:
Engine ran fine for the first four or five weeks we've had the boat. Revs nicely all the way to 6000 rpms and did not show any signs of issues at all.
This past week however, it began acting up. It would rev up to 4500 or so and then begin sputtering and dying down... it would not put out more than 3500 rpms or even less.
Cruised down to a cove and waited out for a while. Turned the engine off and on again, but the syptoms remained and the engine would still not do anything over 3000 revs. On top of this, when I pulled into the marina, the engine now refused to shut off... turning the key to the off position would do nothing, nor would the kill switch. I had to resort to taking the battery lead out to shut the engine down.
Tried several things after this, like slowly reving up but would not get more than 3000 rpms. After several attempts, the issue seemed to dissappear and the engine ran fine again for a little while (10 or 15 minutes) and then died down again and would not produce anything over 3000 once again. The key shut-off issue continued to appear intermitently during all this time.
I'm confused and puzzled here. I would have thought this had something to do with Fuel starvation, water in the fuel, clogged filter or something similar. Yet, this would not explain the engine's refusal to shut down (which could be independent of the revving issue) making me scratch my head here in disbelief.
Any hints or ideas regarding this would be greatly appreciated. The local Yamaha dealer says they have a 4 week wait to get to it, and the worst part is that they will not allow me to bring it to them in four weeks, they want us to drop it off and wait out without the boat.
Thanks in advance,
Andres G