Problems with my 15hp force

deste

Recruit
Joined
Apr 19, 2009
Messages
5
Took my motor to the marina and had it tuned up. Ran good for them, said compression was good, impellar was good and carborator looked good. Had it on the lake today worked fine all morning went to leave, started with the first pull, went about 100 yards and it slowly died out on me and would not start back at all. Seemed like the motor was not getting any fuel.

Any help or ideas about what the problem could be would be great.
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,859
Re: Problems with my 15hp force

Is the vent on the fuel tank open?
Is the fuel line bulb sucked flat?
Does it pump up firm?
Is the fuel tank clean or is there junk on the bottom?

Possibly the fuel pump needs a rebuild.
Or the fuel line may be sucking in air somewhere.
 

deste

Recruit
Joined
Apr 19, 2009
Messages
5
Re: Problems with my 15hp force

Is the vent on the fuel tank open? YES
Is the fuel line bulb sucked flat? NO
Does it pump up firm? YES
Is the fuel tank clean or is there junk on the bottom? DON'T KNOW

Possibly the fuel pump needs a rebuild.
Or the fuel line may be sucking in air somewhere.
 
Joined
Apr 20, 2009
Messages
51
Re: Problems with my 15hp force

I was given a 1990 Force 15hp that hadn't run in about 10 years. The fuel system and carb were full of sediment, so I did the following:

1- Took off the carb, took off the float bowl and float. Marvelled at the amount of crap in there, and at the hole in the bowl.

2- Took out the float valve, which was semi-corroded in place.

3- Cleaned the carb well by spraying (not soaking) with carb cleaner. MAde sure all the little orifices were clean, poisoning myself by putting my mouth on the carb to blow air through where I could.

4- Replaced the bowl, bowl gasket, and valve with new ones.

5- Took off and disassembled the fuel pump, threw away the filter (which had become a plug), cleaned the parts spotlessly clean, and replaced the tiny rusty reed screws with tiny stanless steel screws.

6- Replaced the filter, diaphragm, and gaskets with new ones.

7- Replaced all the fuel lines with new ones, including the external line and bulb. Installed a filter in the external line downstream of the bulb.

8- Ensured the tank was clean and filled with fresh fuel/oil mix.

9- Put everything back together, pumped the bulb firm, ONE push of the primer, choke ("warm up knob") pulled out; fired up on the second pull and has been running well since then.

Sorry so long, but some of that might help.
 
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