Hey everyone, I need HELP.
After pulling this motor out of storage from my father-in-law. I put a fuel pump kit on it as it would not run well. So summer of 2021 it ran fantastic most of the summer until the next to last outing we had late summer 2021. After just putting the boat in the water and running about 10-15min at full throttle, it bogged down to probably 20-30% power at open throttle. It would run with no issues but not get above that 20% power. Adjusting the choke does not seem to change anything. Though it would only idle unless I opened the throttle while not in gear. So I was thinking trash in the lines or carb. I cleaned the tank, checked the Carb and it was clean. Fuel pump was pumping normally. Changed the plugs. Oh, it runs fine on land with the muffs.
So I took it back out for a test run and again, it runs great for about 10-15min then it bogs down. If I shut it down and let it sit for 10 minutes it will run great for 10-15min then bogs down. So my next thought it may be a coil. So I changed the coils and got a new tank and tested on the muffs and ran just fine. We took it out today for test run and again it ran great for 10-15min open throttle then bogs down again! Then it would not idle after that. I will still run fine but only get to that 20% or so power with full open throttle. I shut it down and could barely get it started again. Then it ran for about 10min full throttle then bogged down again.
I am stuck as to what is the problem. It seems to be fuel related. Has anyone had this issue or know what to do!
After pulling this motor out of storage from my father-in-law. I put a fuel pump kit on it as it would not run well. So summer of 2021 it ran fantastic most of the summer until the next to last outing we had late summer 2021. After just putting the boat in the water and running about 10-15min at full throttle, it bogged down to probably 20-30% power at open throttle. It would run with no issues but not get above that 20% power. Adjusting the choke does not seem to change anything. Though it would only idle unless I opened the throttle while not in gear. So I was thinking trash in the lines or carb. I cleaned the tank, checked the Carb and it was clean. Fuel pump was pumping normally. Changed the plugs. Oh, it runs fine on land with the muffs.
So I took it back out for a test run and again, it runs great for about 10-15min then it bogs down. If I shut it down and let it sit for 10 minutes it will run great for 10-15min then bogs down. So my next thought it may be a coil. So I changed the coils and got a new tank and tested on the muffs and ran just fine. We took it out today for test run and again it ran great for 10-15min open throttle then bogs down again! Then it would not idle after that. I will still run fine but only get to that 20% or so power with full open throttle. I shut it down and could barely get it started again. Then it ran for about 10min full throttle then bogged down again.
I am stuck as to what is the problem. It seems to be fuel related. Has anyone had this issue or know what to do!