1982 johnson 115 dies after running 1 minute

[wooleybooger1224]

bought outboard locally from individual. mounted on boat and took to ar. river. engine ran good for about 45 minutes, sat and fished for a while. started engine and it ran for about 1 minute and died like it ran out of gas, pumped bulb up tight again and same thing, limped back to launch ramp and trailered. a week later hooked up water muffs and started engine did same thing. checked screen at fuel pump and cleaned, same thing. replaced fuel,line from tank to engine, tried different tank with vented cap. installed hose clamps on fuel lines, engine stays running if you keep bulb pumped up, fuel pump looks good, ie no tears in diaphram. what gives? thanks for any input!

 

[ob]

Re: 1982 johnson 115 dies after running 1 minute

Looks can be decieving.Disconnect the outlet hose of the fuel pump and route into a suitable container and have someone crank the engine while you monitor its output.Sounds like a bad fuel pump to me.Another possibility is sticky float valves in carbs.

 

[wooleybooger1224]

Re: 1982 johnson 115 dies after running 1 minute

replaced fuel pump/ let me say i installed a pump off a 1971 fifty horse johnson, its not a year old. it had 2 ports, an inlet from tank and outlet i guess went to other carb or bypass. i capped it off and it did the same thing, dies. don't want to spend $60.00 on fuel pump and just be throwing money away.

 

[DJ]

Re: 1982 johnson 115 dies after running 1 minute

wooley,<br /><br />The kit to rebuild the pump is far less than $60.00

 

[wooleybooger1224]

Re: 1982 johnson 115 dies after running 1 minute

could it be the primer pump and how do u check that? it is on the right side of the motor, correct?

 

[DJ]

Re: 1982 johnson 115 dies after running 1 minute

wooley,<br /><br />The primer bulb is part of the fuel hose. It is somewhere between the tank and the engine fitting, on the hose.<br /><br />The primer bulb will not stay rock hard while the engine is running, but it should remain firm.<br /><br />Here's a thought. Look a the primer bulb. It should have an arrow on it showing the direction of fuel flow (arrown pointing away from tank toward engine) . Is yours installed backwards???

 

[wooleybooger1224]

Re: 1982 johnson 115 dies after running 1 minute

replie to djohn19, it is pointed in the correct position. just weird these outboards seem to run fine and start fine right before you go to use them.

 

[ob]

Re: 1982 johnson 115 dies after running 1 minute

The only way the primer solenoid could pose a problem if its lever is in the run position is if the seal on the lever shaft was allowing air to be sucked in or losing fuel.

 

[wooleybooger1224]

Re: 1982 johnson 115 dies after running 1 minute

i'll check tomorrow, but i ran engine run for 20 minutes hooked up to water at differnt rpms and in and out of gear, shouldn't it have given me fits at that time?

 

[wooleybooger1224]

Re: 1982 johnson 115 dies after running 1 minute

help, need this thing going for the family this wekend

 

[Jack Shellac]

Re: 1982 johnson 115 dies after running 1 minute

My guess is that you've got a sticking carburetor float needle valve thats keeping the bowl from refilling with fuel. Try rapping the carb bowl with the plastic handle of a screwdriver. Sometimes this frees them up. It sounds like a carb rebuild is going to be needed.

 

[rudeafrican]

Re: 1982 johnson 115 dies after running 1 minute

Hi wooley<br /><br />As Jack pointed out, more than likely a sticking needle valve or clogged passages in the carb.<br /><br />Get a carb rebuild kit, relatively cheap, tear the carb down, soak overnight in carb cleaner, blow out the passages with compressed air, reassemble and hopefully, you're done.<br /><br />In fact, crud in a carb is so common, I would have done that before replacing fuel hoses etc.<br /><br />As soon as you have some time, replace the water pump/impellor and lower unit oil.

 

[ledgefinder]

Re: 1982 johnson 115 dies after running 1 minute

Is the vacuum hose that drives the pump leaking?

 

[wooleybooger1224]

Re: 1982 johnson 115 dies after running 1 minute

there was a hose small probably an eigth inch that was off from air intake to lower carb, i reinstalled a i didn't make a difference

 

[ledgefinder]

Re: 1982 johnson 115 dies after running 1 minute

There's another hose, running from the fuel pump to the crankcase. The fuel pump runs off pulses in crankcase vacuum. Does that second hose look OK?

 

[wooleybooger1224]

Re: 1982 johnson 115 dies after running 1 minute

i'll check that today, when ahead and gave my $100.00 donation to the local marine store for a fuel pump and carb rebuild kits.

 

[shannoninark]

Re: 1982 johnson 115 dies after running 1 minute

wooly,<br /><br />Another conway arkie guy here. Where did you buy your parts from? I just had a powerpack and a voltage reg. replaced at Sportsmans boating center and it was 460.00. WOW..talk about breaking the bank. I used to work on smaller motors with my dad, i wouldnt mind taking a look at it with ya. Email me @eurekapizza@conwaycorp.net...oh and do you like pizza???Give me a holler..