1973 25hp johnson

[wily]

Tried the jet for a test run today

motor was hard to start and would run for a bit...and then die

i noticed the fuel line was cracked by the bulb...so went to Walmart and bought a whole new assembly.  Thought about just replacing the bulb and hose...but bit the bullet.  I like the new connection to tank deal

back to the creek...would run for a bit...and then die...then hard to start...then run a bit...and die

not the best description...but seems like a fuel problem...the carb was rebuilt a couple years ago

you think it’s the fuel pump?  

Seems like there’s something wrong with it 

it was peppier in the new trim hole...the transducer sprayed some...but continued to read while on plane

must be karma

[fishinwrench]

As a general rule when I get my hands on a motor of that age here's what I do, or what I recommend....

If there's a fuel system problem then go ahead and rebuild/refresh/synchronize the ENTIRE fuel system (carbs, fuel pump, fuel supply line and ALL fuel hoses) and make sure the fuel tank and it's fittings are 100% good/clean/tight.   Just go ahead and eliminate all possibility of a fuel system related issue for the next 5-10 years.   

Refresh the cooling system completely. Don't just slap in a fresh impeller. Refresh the housing, the water tube grommet, thermostat, and any associated gaskets while your there. 

Gearcase seals? Absolutely! Those things are probably 30-40 years old and made of rubber.   Refresh them and fill with fresh gear lube. Don't wait for a seal to blow.....gearsets aren't cheap.

New spark plugs....the RIGHT ONES, Champion's, not the NGK crossovers that O'riellys are going to try to sell you, and gap them at .030

Now, if you've done it all right, and the powerhead and ignition system is good, you've got a motor that will start and run dependably  .

[wily]

I wish you didn’t live so flipping far away...not sure what I’ll do next

[fishinwrench]

6 minutes ago, wily said:

I wish you didn’t live so flipping far away...not sure what I’ll do next

Grab your wrenches, side cutters, and a screwdriver, and get busy!  👍

You've got this 💪

[wily]

Right...i can’t fix anything 

I’m gonna go look under the hood...see if I see anything that looks weird 

[fishinwrench]

There's no outboard shops around there?   

[wily]

Here’s some pics....has new spark plugs 

 

[wily]

Not sure what that brown stuff is on choke arm

[wily]

5 minutes ago, fishinwrench said:

There's no outboard shops around there?   

Ya...Kim at marine center did the carb rebuild and the new plugs and stuff a couple years ago

he is a good guy...but I think his helper worked on it 

[fishinwrench]

The brown stuff on the choke lever is 50 year old grease.   

I was thinking that 1973 was CDI ignition, but it isn't.   That one has points/condenser/coils under the flywheel (which probably need to be checked out).

That fuel supply hose and clamp are ancient.  Fuel pump is more than likely in bad need of a rebuild.    

Those are really good motors, a testament to what a REALLY good 2-stroke outboard should be....but yeah she's crying for some love.