BlueCrabRhodes
New member
I'm new to this forum thing...hoping for some help since I can't get any servicing dealers to return my calls.
Motor runs strong and perfectly until the rpm's increase to a point where the alarm sounds and the motor bogs down. If I do nothing, it bucks pretty harshly and ultimately shuts off. If I throttle down, the bucking is less harsh but always eventually shuts off. When I throttle down and turn the ignition off, it always restarts immediately. In regards to the rpm level for the issue to occur, when it's just me and Boomer it is right around 4500rpm...will run all day wonderfully at 4400rpm. With heavier load in the boat, the issue occurs at lower rpm levels, which is perfectly understandable. However, wouldn't this point to a fuel flow issue?
Some backstory; launched the boat in late April and this same issue occurred at only 1200rpm...would run fine at 1000rpm. My limited mechanical knowledge allowed me to think this was an easy overheat problem so I replaced the impeller. Ran the boat on a hose at 2500rpm for approx 20 mins and thought I was in the clear but then it happened again. Noticed some water in the filter under the cowling so I figured that was the issue. Changed all the filters, have gone through about 120gals of fuel while maintaining drainage of Racor and adding fuel treatments.
Now, it happens so predictably that I can't believe it's a fuel issue but a flow issue. Or are they the same?
I'm the guy that normally hires people for this stuff but fate has me unemployed this summer...great opportunity to go boating....if only the boat ran properly...
thanks for for any help...
Chris
Motor runs strong and perfectly until the rpm's increase to a point where the alarm sounds and the motor bogs down. If I do nothing, it bucks pretty harshly and ultimately shuts off. If I throttle down, the bucking is less harsh but always eventually shuts off. When I throttle down and turn the ignition off, it always restarts immediately. In regards to the rpm level for the issue to occur, when it's just me and Boomer it is right around 4500rpm...will run all day wonderfully at 4400rpm. With heavier load in the boat, the issue occurs at lower rpm levels, which is perfectly understandable. However, wouldn't this point to a fuel flow issue?
Some backstory; launched the boat in late April and this same issue occurred at only 1200rpm...would run fine at 1000rpm. My limited mechanical knowledge allowed me to think this was an easy overheat problem so I replaced the impeller. Ran the boat on a hose at 2500rpm for approx 20 mins and thought I was in the clear but then it happened again. Noticed some water in the filter under the cowling so I figured that was the issue. Changed all the filters, have gone through about 120gals of fuel while maintaining drainage of Racor and adding fuel treatments.
Now, it happens so predictably that I can't believe it's a fuel issue but a flow issue. Or are they the same?
I'm the guy that normally hires people for this stuff but fate has me unemployed this summer...great opportunity to go boating....if only the boat ran properly...
thanks for for any help...
Chris