georgia088
Cadet
- Joined
- Aug 14, 2017
- Messages
- 29
I appreciate any help in advance.
I have a 2008 pontoon that did have a 2009 Mercury 50, and I swapped engines out about two years ago. Both engines have had the same issue, so I am assuming it is in the fuel system some how. The boat will typically fire up and run great almost always. However, every so often you can hear the engine start to choke down like it is starving of fuel. Usually this happens at lower rpms, but it will happen while traveling with some speed also. If you go back to the back and pump the "bubble" it will catch up and run fine, but if you don't pump the bubble it will eventually choke down. If you pump the bubble it will usually fire up pretty easily and run fine. I have tried depressing the key to "choke" the engine when it has happened, and it doesn't seem to help either.
It happens very sporadically. Sometimes it may happen 5 times in a day and others it may not happen all day. It seems to happen worse after you have run pretty hard and then shut the engine off. It will then fire up with no problem, but if you travel at low rpms after this the bubble will go flat. We rebuilt the fuel pump in the old engine, but it didn't seem to help. I thought that maybe the fuel line had a small hole in it inside the pump, but it doesn't matter whether the tank is full or not it still will do it. Any help would be appreciated!!
Thanks so much!!
I have a 2008 pontoon that did have a 2009 Mercury 50, and I swapped engines out about two years ago. Both engines have had the same issue, so I am assuming it is in the fuel system some how. The boat will typically fire up and run great almost always. However, every so often you can hear the engine start to choke down like it is starving of fuel. Usually this happens at lower rpms, but it will happen while traveling with some speed also. If you go back to the back and pump the "bubble" it will catch up and run fine, but if you don't pump the bubble it will eventually choke down. If you pump the bubble it will usually fire up pretty easily and run fine. I have tried depressing the key to "choke" the engine when it has happened, and it doesn't seem to help either.
It happens very sporadically. Sometimes it may happen 5 times in a day and others it may not happen all day. It seems to happen worse after you have run pretty hard and then shut the engine off. It will then fire up with no problem, but if you travel at low rpms after this the bubble will go flat. We rebuilt the fuel pump in the old engine, but it didn't seem to help. I thought that maybe the fuel line had a small hole in it inside the pump, but it doesn't matter whether the tank is full or not it still will do it. Any help would be appreciated!!
Thanks so much!!