wvmedic
Chief Petty Officer
- Joined
- Jun 3, 2008
- Messages
- 508
1988 Johnson J10RCCD with Champion RL82C plugs.
I bought this boat and motor combo. When I got it home it had old gas in it and when I checked the fuel pump screen the gas that came out of it was brown.
So I decided to rebuild the carburetor and fuel pump as well as new plugs, I replaced the NGK plugs with the above set at .30 gap.
Took the boat out with a new gas tank and hose, it ran perfect like new.
Took it out about a month later couldn't get it to start, I took the silencer off and soaked a rag with gas pumped out of the fuel pump held over the front of the carburetor.
It fired right up and idled fine, shut in down and it fired up first pull. In fact about a half of a pull on the rope, ideles fine.
Head out on the lake and it will not rev up to full RPM at WOT. Atleast by sound and speed as it did on the previous run. It will pick up RPMs if I pull the choke out about a 1/4 of the way.
Took it out again yesterday, same thing. Got home and took the carburetor apart and found what looked to be a small piece of teflon tape in the bowl. I haven't used any teflon though.
So I blew compressed air thru the carburetor to make sure that it was clear. Put it back together and hit the river this morning and it is still running poorly.
Compression is 120psi on both cylinders, good spark jumping a half inch on the spark testers.
I am at a loss as what is wrong, any ideas?
I have to get it working correctly because we leave for Quebec in 66 days.
Help, please
Jeff
I bought this boat and motor combo. When I got it home it had old gas in it and when I checked the fuel pump screen the gas that came out of it was brown.
So I decided to rebuild the carburetor and fuel pump as well as new plugs, I replaced the NGK plugs with the above set at .30 gap.
Took the boat out with a new gas tank and hose, it ran perfect like new.
Took it out about a month later couldn't get it to start, I took the silencer off and soaked a rag with gas pumped out of the fuel pump held over the front of the carburetor.
It fired right up and idled fine, shut in down and it fired up first pull. In fact about a half of a pull on the rope, ideles fine.
Head out on the lake and it will not rev up to full RPM at WOT. Atleast by sound and speed as it did on the previous run. It will pick up RPMs if I pull the choke out about a 1/4 of the way.
Took it out again yesterday, same thing. Got home and took the carburetor apart and found what looked to be a small piece of teflon tape in the bowl. I haven't used any teflon though.
So I blew compressed air thru the carburetor to make sure that it was clear. Put it back together and hit the river this morning and it is still running poorly.
Compression is 120psi on both cylinders, good spark jumping a half inch on the spark testers.
I am at a loss as what is wrong, any ideas?
I have to get it working correctly because we leave for Quebec in 66 days.
Help, please
Jeff