SteveAtPowell
New member
Hi,
I'm about at the end of my rope with this....Motor was running fine, no problems known. I launched the boat , started and idled out of the no wake zone and when I pushed the throttle down, the motor stuttered and shook back and forth. As soon as I took it back below 1000 rpms it ran good enough to get back to the dock. Upon examination, I discovered the old fuel line had started to deteriorate and was clogging the connector and some chunks had gotten into the fuel filter. Don't think any chunks made it to the carburetors. At any rate, I replaced the fuel line with new stuff, thoroughly cleaned the filter, new fuel pump,new spark plugs, cleaned the fuel tank and put in fresh gas. As a final precaution, rebuilt and cleaned all three carbs. So now the motor starts but still won't go beyond 1100 rpms without surging and shaking, acting like it's fuel starved. I suppose it could be an ignition problem but I did a compression check-all good, checked spark-all good, coils- all good. I can't believe this isn't fuel related somehow because it would be too weird to think the fuel lines went bad at the same time I had a bad coil or something. Anyone else have this happen, help!
I'm about at the end of my rope with this....Motor was running fine, no problems known. I launched the boat , started and idled out of the no wake zone and when I pushed the throttle down, the motor stuttered and shook back and forth. As soon as I took it back below 1000 rpms it ran good enough to get back to the dock. Upon examination, I discovered the old fuel line had started to deteriorate and was clogging the connector and some chunks had gotten into the fuel filter. Don't think any chunks made it to the carburetors. At any rate, I replaced the fuel line with new stuff, thoroughly cleaned the filter, new fuel pump,new spark plugs, cleaned the fuel tank and put in fresh gas. As a final precaution, rebuilt and cleaned all three carbs. So now the motor starts but still won't go beyond 1100 rpms without surging and shaking, acting like it's fuel starved. I suppose it could be an ignition problem but I did a compression check-all good, checked spark-all good, coils- all good. I can't believe this isn't fuel related somehow because it would be too weird to think the fuel lines went bad at the same time I had a bad coil or something. Anyone else have this happen, help!