Honda BF 2 stalling issues

M

msgchef

New member
Took the dink out for my first time with the Honda BF 2. A 2005 model Took about 15 pulls to start, I figured its the lack of manual priming. [Pls tell me if I am wrong]. However the trip got worse. The motor stalled approx every 4-5 minutes. Started again with about 5-6 pulls, but ran for the aforementioned 4-5 minutes and just died. Throttle speed was varied when it died. First time full throttle other times different speeds as I tried to find a rhyme or reason. It has only no ethanol fuel, however fuel could be 4 months old.
Any thoughts to assist me in my fix.
thanks
Paul
 
I dont know the exact issue.

For outboards, I use a trash can with water when servicing

I would replace the fuel and add the approximate volume of fuel system cleaner ex SeaFoam or equivalent, remove spark plug and re gap or replace it and inspect it for color and condition
I would check the plug is sparking too
if an inline fuel filter is present either clean it or replace. I am thinking it is a fuel issue and check the carb linkage is smooth and no leaks from gaskets, Sometimes the fuel bowl can removed and cleaned and examined for debris or dirt
If it has idle or high jets, the screws can be adjusted when running,'
Sometimes opening the screws to full open with remove blockage when running.

Sometimes running it in water tank for a hour a various speeds with fresh gas and cleaner will help
I dont have a manual for this OB to trouble shoot further
 
msgchef":2086qhwz said:
Took the dink out for my first time with the Honda BF 2. A 2005 model Took about 15 pulls to start, I figured its the lack of manual priming. [Pls tell me if I am wrong]. However the trip got worse. The motor stalled approx every 4-5 minutes. Started again with about 5-6 pulls, but ran for the aforementioned 4-5 minutes and just died. Throttle speed was varied when it died. First time full throttle other times different speeds as I tried to find a rhyme or reason. It has only no ethanol fuel, however fuel could be 4 months old.
Any thoughts to assist me in my fix.
thanks
Paul
Click to expand...


Tank Vent?? :wink:
 
tsturm":2tn0gfpx said:
Tank Vent?? :wink:
Click to expand...

Bingo!

My thoughts, exactly!

Fuel starvation due to lack of vent open on tank and therefore engine cannot draw fuel against pressure differential.

Most common overlooked fuel draw issue.

Does the motor have an internal tank or a remote?

(Hope it's so simple!!!)

Good Luck!

Joe. :teeth :thup
 
Assuming the vent is open and you have good gas, I would pull the carburetor off and clean out the jets. The carbs on these small motors are pretty simple and easy to clean

I had a similar problem on the water last year with a mercury 4hp. I watched a video on youtube and cleaned out the jets with wd40( I realize it's not carb cleaner). The engine has run fine ever since.
 
There it is... my inexperience, did not open fuel vent on the internal tank.
Thanks so much, glad it was a simple. Will try the trash can test. It'll keep me from the long row home. :oops:
 
The beauty of the Honda 2hp is that it is air cooled therefore you can run it "dry" without any issues. I regularly run mine in the barn hanging off a bracket.

James
 
Was always curious about running it out of water as it does have a water pump that apparently cools the lower unit. Any chance of damage there?
 
I don't think that it has a lower unit water pump, since the heat generated by the lower unit is friction through the gearing and bearing. If that's significant enough to require active cooling, that motor is wasting a lot of power and needs to be redesigned. And Honda builds good engines. Honda does advertise shallow water running, as a further thought.

Unless you're counting the propeller as a pump, which it is.

Another random thought: could you have noticed the exhaust, which is under water?

Boris
 
They have an impellar in the lower unit. They say it is to cool the exhaust. I would think running one out of water for any significant length of time would at least melt or damage the impellar. I have had to change impellars a couple of times over the years.
 
There is no impeller .Air cooled motor with centrifugal clutch. Those plastic carbs are not real serviceable . They are easily replaced if you let fuel sit in them . Can run dry out of the water no problem .
Marc
 
Wefings":1hqiukwj said:
There is no impeller .Air cooled motor with centrifugal clutch. Those plastic carbs are not real serviceable . They are easily replaced if you let fuel sit in them . Can run dry out of the water no problem .
Marc
Click to expand...
Of course, Mark is correct. I also note that the 2hp Honda has a small screw on the carb that you can remove to drain the carb bowls. You should do that prior to storage for any length of time. The jets in this itty-bitty carb are hard to clean.
 
Can't resist. Forgive me.

Not to disagree with Marc, but the Honda 2 has 2 impellers. First and foremost, the propeller impels the water aft, so one may move forward. That's not trivial, since that's why you bought the motor. And next the motors piston impels the exhaust out the exhaust pipe. If neither works, you don't go.

Boris
 
journey on":2rm7b9p0 said:
Can't resist. Forgive me.

Not to disagree with Marc, but the Honda 2 has 2 impellers. First and foremost, the propeller impels the water aft, so one may move forward. That's not trivial, since that's why you bought the motor. And next the motors piston impels the exhaust out the exhaust pipe. If neither works, you don't go.

Boris
Click to expand...
"An impeller is a rotating component of a centrifugal pump, usually made of iron, steel, bronze, brass, aluminum or plastic, which transfers energy from the motor that drives the pump to the fluid being pumped by accelerating the fluid outwards from the center of rotation." - http://en.wikipedia.org/wiki/Impeller
 
Sure, I have nothing better to do, since I just reworked the irrigation lines. So.... how far can we take this?

Merrian Webster:
I feel a dictionary is a more comprehensive source than Wikipedia, because there is some editing to include various usages.

NOUN im·pel·ler \im-ˈpe-lər\
Definition of IMPELLER

1: one that impels
2 a : a rotor located in a conduit to impart motion to a fluid
b : a blade of a rotor

I feel that the piston sorta slides in under definition 1. Actually, the expansion of the exhaust gas is the primary cause, but there is an impulse from the piston as it heads upward as well as the fresh charge as it comes in.

Definition 1 certainly includes a propeller. The purpose of the prop is to impel water the opposite way to that in which you want to go. F=Ma as Newton used to say.

I rest my case which I believe is 24 cans of beer.

Boris
 
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