I have an 81 90 Evinrude V4.
Here's the deal.
I've had it for about a year now and it always ran well, until...
2nd to last trip I did not open the vent on a 6 gallon plastic tank and I sucked it in good, really good, by the time I vented it the motor was already showing signs of hesitation.
I rebuilt the fuel pump a few months back (prior to this incident) and no problems since,again until i did this.
Boat (18' Stracraft mariner cc) ran at 5500 rpm, top out at 40 mph and has 120 psi in all cylinders.
I am wondering if this amount of vacuum from sucking in the tank could rupture something like the fuel pump diaphram.
Here's what happend on the last trip yesterday.
Hard start, but typical when I trailer it long distances, and I learned on other posts I need to push the key and hold it a little longer than I usually do to prime the fuel.
Once started it ran fine at low idle and I ran low speed for about 10 min. I got to the mouth of the harbor, throttled up and every mariners worst nightmare stall in the mouth of the narrow harboe entrance to the ocean in 7-8 foot swell and 12 knot winds, luckily it restarted immediately and I was able to limp it out past the jaws.
Ran around fine at low or near idle speeds but taching erradically tried to get on plane would throttle up, pop, and slowly or very slowly die. Not sure what the pop sound is but think its going into or out of gear.
Priming the fuel bulb (which is brand new, 1st use) seemed to help or delay the inevitible stall.
Limped back to the dock and pulled the hood and found the following,
I am getting a little fuel leaking out of the manual start switch solenoid schrader valve, the cap is on the valve and switched to the run (not manual) position.
I can hear a very faint pin hole like air leak near the fuel hose connection point on the outboard and don't think its near the fuel pump, but could be.
And the very last kicker to make it more interesting the contol would not shift into forward gear, it was all or nothing slam into forward and hold on tight!.
Here's the deal.
I've had it for about a year now and it always ran well, until...
2nd to last trip I did not open the vent on a 6 gallon plastic tank and I sucked it in good, really good, by the time I vented it the motor was already showing signs of hesitation.
I rebuilt the fuel pump a few months back (prior to this incident) and no problems since,again until i did this.
Boat (18' Stracraft mariner cc) ran at 5500 rpm, top out at 40 mph and has 120 psi in all cylinders.
I am wondering if this amount of vacuum from sucking in the tank could rupture something like the fuel pump diaphram.
Here's what happend on the last trip yesterday.
Hard start, but typical when I trailer it long distances, and I learned on other posts I need to push the key and hold it a little longer than I usually do to prime the fuel.
Once started it ran fine at low idle and I ran low speed for about 10 min. I got to the mouth of the harbor, throttled up and every mariners worst nightmare stall in the mouth of the narrow harboe entrance to the ocean in 7-8 foot swell and 12 knot winds, luckily it restarted immediately and I was able to limp it out past the jaws.
Ran around fine at low or near idle speeds but taching erradically tried to get on plane would throttle up, pop, and slowly or very slowly die. Not sure what the pop sound is but think its going into or out of gear.
Priming the fuel bulb (which is brand new, 1st use) seemed to help or delay the inevitible stall.
Limped back to the dock and pulled the hood and found the following,
I am getting a little fuel leaking out of the manual start switch solenoid schrader valve, the cap is on the valve and switched to the run (not manual) position.
I can hear a very faint pin hole like air leak near the fuel hose connection point on the outboard and don't think its near the fuel pump, but could be.
And the very last kicker to make it more interesting the contol would not shift into forward gear, it was all or nothing slam into forward and hold on tight!.
