My 1991 40 hp has dual carbs. There is a hose which runs from the top of one carb to the the top of the other carb. Is this hose there for any good reason? Like equalizing the pressure on the negative side to the throttle plates of each carb. This question is more for the theory guys.
cheers
I may decommission 2 20hp johnsons on my 15 ft starcraft for the 1991 johnson 40 hp which i rebuilt 20 thou over.
My boat has two tachs for my 1961 johnson.
I got the omc control with the 40 hp and it has a 3 pin connector on it for
acc, gnd, tach signal.
I hooked up my fluke meter to the tach...
1991 johnson 40 hp
I have unplugged vro, and opened the circuit for the oil reservior.
I still get a lesser beep, its not the loud over heat beep.
Is the another signal wire i am missing?
the ignition was bad so i replaced the ignition with a new upgraded cdi solution.
cheers
Having an awfull time with one carb.
Replace the ingnition with a cdi solution and it working great.
The lower carb works great in the barrel. When I get to the river the lower carb alway seems to fail.
The last time I took a spray bottle with oil gas mix the prove it was a carb problem and...
Bought this 91 johnson 40 hp for 200 dollars.
It had been burned up and both cylinder were scored. Removed the power head and took it to a machine
shop and bored the cylinders 20 thousand over size. Replace the pistons and rings, Reassembled and found the was a slight miss fire on lower...
Found ingnition module to have a weak and intermittent spark on the lower cylinder.
Bought the CDI total ignition solution for this motor.
All wires are color coded and labled to know where they go except one wire.
The wire I am refering to is total black coming from the CDI module.
It has a...
Tones sometime go away. thats good
Took boat out on water and had carb or spark failure.
Came home and soaked carb in lacquer thinner the remove more varnish deposits. started it up in a barrel.
Maybe not a carb problem.
Hard to determine if spark or carb issue. However today i started it up...
My rebuilt 40 hp in running perfectly.
I wish to mix my oil ang gas for the life of this engine.
I am mixing 25 to 1 for break in purposes since it was just rebuilt.
How do I disable the tone for no oil. I have routed the out of the vro fuel side into the oil side of the vro strictly for...
got my 40 horse together.
Turned the key ant it fired up after the rebuild.
only let it fire about 10 times because I don't have the lower end installed
question: It make a contant loud beep when i turn on the key.
Where do I plug in the two pin connector from the vro container.
Never saw this...
I have bored out my 40 hp rebuild and am in the process of assembly.
What is the proper use for the omc gel seal?
Is there a document on its use.
My manual is very vague on the process of application.
thanks
doug
Going for the rebuild!!!!!!!!!!!!!!!!!!
My 200 dollar basket case has two scored pistons and cylinder walls.
No metal filings to speak of.
Have the block in the machine shop. They say at least 10 thou over may do it. Have listed al the seals and O ring need to install on crank.
I bought a...