Boat: 1986 50 H.P. Force (507X6A)
Problem 1: Maxes out at 8 mph.
Problem 2: I've never worked on boats or engines.
Action 1: Read posts, decided might need to clean carburetor.
Action 2: Ordered Clymer manual to find and clean carburetor.
What I need help with:
Cleaned carburetor. The engine still starts but runs for only 5 seconds max now before flooding. Just before it dies, you can see fuel begin to squirt out a hole at the top of the carburetor just about where the idle pin rests. Once it floods the first time, it won't start again (unless you wait for it to evaporate), and a lot of fuel squirts out that same hole. I have uploaded a video showing how the throttle opens the throttle valve, and where the fuel squirts from (http://vimeo.com/12861845 In the video the engine only runs for about 1 second). See picture below.
The manual arrived yesterday and I took apart and cleaned the carburetor last night with carburetor cleaning fluid (aerosol can). I took off the choke valves at the front (two of them, like a butterfly) and the throttle valve at the back.
I am sure that everything got put back together correctly except for these two valves. The manual doesn't explain how these valves should look, and I can't find pictures anywhere. The top flap of the choke (relieving valve) stays put now because the spring is pushing it toward the back. The bottom flap stays open until the key is pushed in, which makes it shut. See below.
The throttle valve stays shut until the boat is taken out of neutral and put into forward or reverse. See below.
I did not replace the gaskets because I don't have them. I can order them if needed but is there anything else I can try in the meantime? The float is empty, clean, level, and moves freely. I unscrewed the nozzle that's underneath the screw that holds the bowl on, but there's a small metal tube that kinds of blocks direct access with a screwdriver to the nozzle. The small metal tube doesn't look like it can be removed and appears to go up through the main chamber, and possibly out the hole that is leaking. Is this some sort of overflow so the fuel doesn't all end up inside the main compression chamber place? I have also tried tightening the idle pin all the way, as well as letting it out more. Still floods.
By the way, there was no washer and no springs inside of the bowl. Parts 16, 22, and 26 in this image. Could these be part of the problem? The float valve and seat (31) also look different than in the manual and the link. I just have a 4-sided pin with a rubber pointy tip at one end which seals the fuel flow off when the float is high enough.
Problem 1: Maxes out at 8 mph.
Problem 2: I've never worked on boats or engines.
Action 1: Read posts, decided might need to clean carburetor.
Action 2: Ordered Clymer manual to find and clean carburetor.
What I need help with:
Cleaned carburetor. The engine still starts but runs for only 5 seconds max now before flooding. Just before it dies, you can see fuel begin to squirt out a hole at the top of the carburetor just about where the idle pin rests. Once it floods the first time, it won't start again (unless you wait for it to evaporate), and a lot of fuel squirts out that same hole. I have uploaded a video showing how the throttle opens the throttle valve, and where the fuel squirts from (http://vimeo.com/12861845 In the video the engine only runs for about 1 second). See picture below.
The manual arrived yesterday and I took apart and cleaned the carburetor last night with carburetor cleaning fluid (aerosol can). I took off the choke valves at the front (two of them, like a butterfly) and the throttle valve at the back.
I am sure that everything got put back together correctly except for these two valves. The manual doesn't explain how these valves should look, and I can't find pictures anywhere. The top flap of the choke (relieving valve) stays put now because the spring is pushing it toward the back. The bottom flap stays open until the key is pushed in, which makes it shut. See below.
The throttle valve stays shut until the boat is taken out of neutral and put into forward or reverse. See below.
I did not replace the gaskets because I don't have them. I can order them if needed but is there anything else I can try in the meantime? The float is empty, clean, level, and moves freely. I unscrewed the nozzle that's underneath the screw that holds the bowl on, but there's a small metal tube that kinds of blocks direct access with a screwdriver to the nozzle. The small metal tube doesn't look like it can be removed and appears to go up through the main chamber, and possibly out the hole that is leaking. Is this some sort of overflow so the fuel doesn't all end up inside the main compression chamber place? I have also tried tightening the idle pin all the way, as well as letting it out more. Still floods.
By the way, there was no washer and no springs inside of the bowl. Parts 16, 22, and 26 in this image. Could these be part of the problem? The float valve and seat (31) also look different than in the manual and the link. I just have a 4-sided pin with a rubber pointy tip at one end which seals the fuel flow off when the float is high enough.
