Palssonater
Seaman
- Joined
- Jul 3, 2007
- Messages
- 60
A while back I posted about my primer valve being faulty and the fuel pump flooding the motor out via the primer. I've since removed the primer and tuned the motor accordingly. Nice tan colored plugs now when running. I've never used the primer in warm weather to start and it would start on the 3rd pull every time last year.
The problem still exists in starting the motor and keeping it running. I've taken the carb apart and checked needle and seat, main jet and fuel mixture needle. Everything checks out there. The only thing I haven't done is to see if the float will actually float in a bowl of water(just thought of that now as I type).
It took me about 20 pulls to get any sort of feeling that the motor had helped itself turn over by combustion. Another 20 to get it coughing and sputtering. By removing the fuel line from the motor and pulling it seemed to help the motor start and idle for a time. I then replaced the fuel line and primed the ball to fill the carb. It would idle for a bit more and then die out. Had to remove the fuel line again to get it started. I went through this process about 5 times before I took it for a ride.
Now the motor running fairly soundly at first begins to die as I throttle up. I slow and prime the ball again. And repeat this procedure a couple of times. Eventually the motor is running fine and I pick up some passengers and we go on our way fishing. About a mile down the river after running at WOT for that time it sputters out and the ball again is softer than normal running. Slow to a idle, pump primer and continue the next mile unphased.
Used it the entire day fishing, starting the motor with one pull here and there to move us around our favorite spot and fill our stringer. Off we go back up river to the launch. Flawless almost the whole way, but then dies right on the last leg of our journey. Boat comes to a stop and I put it neutral to start it on the first pull and keep on the go. Finished by loading up.
So this is starting to get to me. I have the fuel pump repair kit on order, however by inspection of the diaphragm it looks fine. All the gaskets are in good condition and no leaking fuel from the pump. I can't think the needle and seat(in carb) are sticking because I've had that apart and pressure tested it. As well as noticed the float travels freely. I've inspected all fuel lines for leakage and cleaned the inside of my tank out thoroughly.
There is a line I am unclear of what it is. It runs from the engine block above the fuel pump to the intake manifold on the lower left hand side of the manifold. I believe it to be a re-circ line or would it be a vaccuum line for leaf/reed control?
Regardless I am at my wits end. I will try a loaner fuel pump tonight, wait for my kit to come and repair my own. I have borrowed a tank to ensure that it was not my fuel line from tank to motor supply. Although I am not totally convinced that isn't it either. Either way, can you guys think of anything I've over looked. I am frusturated and could see how I could look past something simple.
Sorry about the venting.
The problem still exists in starting the motor and keeping it running. I've taken the carb apart and checked needle and seat, main jet and fuel mixture needle. Everything checks out there. The only thing I haven't done is to see if the float will actually float in a bowl of water(just thought of that now as I type).
It took me about 20 pulls to get any sort of feeling that the motor had helped itself turn over by combustion. Another 20 to get it coughing and sputtering. By removing the fuel line from the motor and pulling it seemed to help the motor start and idle for a time. I then replaced the fuel line and primed the ball to fill the carb. It would idle for a bit more and then die out. Had to remove the fuel line again to get it started. I went through this process about 5 times before I took it for a ride.
Now the motor running fairly soundly at first begins to die as I throttle up. I slow and prime the ball again. And repeat this procedure a couple of times. Eventually the motor is running fine and I pick up some passengers and we go on our way fishing. About a mile down the river after running at WOT for that time it sputters out and the ball again is softer than normal running. Slow to a idle, pump primer and continue the next mile unphased.
Used it the entire day fishing, starting the motor with one pull here and there to move us around our favorite spot and fill our stringer. Off we go back up river to the launch. Flawless almost the whole way, but then dies right on the last leg of our journey. Boat comes to a stop and I put it neutral to start it on the first pull and keep on the go. Finished by loading up.
So this is starting to get to me. I have the fuel pump repair kit on order, however by inspection of the diaphragm it looks fine. All the gaskets are in good condition and no leaking fuel from the pump. I can't think the needle and seat(in carb) are sticking because I've had that apart and pressure tested it. As well as noticed the float travels freely. I've inspected all fuel lines for leakage and cleaned the inside of my tank out thoroughly.
There is a line I am unclear of what it is. It runs from the engine block above the fuel pump to the intake manifold on the lower left hand side of the manifold. I believe it to be a re-circ line or would it be a vaccuum line for leaf/reed control?
Regardless I am at my wits end. I will try a loaner fuel pump tonight, wait for my kit to come and repair my own. I have borrowed a tank to ensure that it was not my fuel line from tank to motor supply. Although I am not totally convinced that isn't it either. Either way, can you guys think of anything I've over looked. I am frusturated and could see how I could look past something simple.
Sorry about the venting.
