1972 Power Cat Angler
1970 Mercury 650
Events: Engine would start easily, idle, and increase rpm while on muffs.
Put it in the water, start easily, idle, then bog down and die.
Ran the traps and discovered a tear in the fuel pump diaphragm. Ordered replacement from marineengine.com, received and installed.
Put it in the water, ran great, lots of power, sounded fine.
Next trip out (2 days later) while out spotting potential fishing spots, ran out of fuel. I had previously filled both my boat tank and my backup with ethanol free. However, it is scarce in my area, and this particular day, the one place that has it was closed. So I topped off my boat tank (about 2 gallons) and filled my backup. When it "ran out" there was about a gallon remaining, so I went ahead and added 2 gallons. This is when the issues that I am battling now began. It started right up, as usual, but this time when I would open the throttle, is was way down on power and RPM. It began surging like it had debris in the line.
Pulled it home and began running fuel lines. After not finding anything and putting it back together, fuel began running out of the cowling when I pumped up the bulb. Broken fuel line. Another order placed with marineengine.com, another part arriving quickly and correctly, and installed.
Put it in the water yesterday, started, idle, low speed (no wake zone) does fine, open it up, no power.
Home: Fuel system again, a LOT of debris in filters, jets, bowls. Made perfect sense being I had the cracked fuel line and was sucking air for a short while.
Reassemble, on muffs, start great, idle great, RPM run up fine.
This morning, back out for a test, start, idle, slow speed fine, open up:no power.
Just will not go.
Thoughts, suggestions, trails, anything can help??
1970 Mercury 650
Events: Engine would start easily, idle, and increase rpm while on muffs.
Put it in the water, start easily, idle, then bog down and die.
Ran the traps and discovered a tear in the fuel pump diaphragm. Ordered replacement from marineengine.com, received and installed.
Put it in the water, ran great, lots of power, sounded fine.
Next trip out (2 days later) while out spotting potential fishing spots, ran out of fuel. I had previously filled both my boat tank and my backup with ethanol free. However, it is scarce in my area, and this particular day, the one place that has it was closed. So I topped off my boat tank (about 2 gallons) and filled my backup. When it "ran out" there was about a gallon remaining, so I went ahead and added 2 gallons. This is when the issues that I am battling now began. It started right up, as usual, but this time when I would open the throttle, is was way down on power and RPM. It began surging like it had debris in the line.
Pulled it home and began running fuel lines. After not finding anything and putting it back together, fuel began running out of the cowling when I pumped up the bulb. Broken fuel line. Another order placed with marineengine.com, another part arriving quickly and correctly, and installed.
Put it in the water yesterday, started, idle, low speed (no wake zone) does fine, open it up, no power.
Home: Fuel system again, a LOT of debris in filters, jets, bowls. Made perfect sense being I had the cracked fuel line and was sucking air for a short while.
Reassemble, on muffs, start great, idle great, RPM run up fine.
This morning, back out for a test, start, idle, slow speed fine, open up:no power.
Just will not go.
Thoughts, suggestions, trails, anything can help??