6hp evinride fisherman hard starting

[rodeys]

hi
iv a old 6hp evinrude fisherman 1970s,
cant get the engine to start unless i put a squirt of petrol mix into the carb throat , then it will fire and run, as soon as i stop it its the same thing again,
so far iv changed the plugs, clean all points and confirmed theres a exellent spark,
took the carb apart twice and clean all jets and tookout the plug over the idle needle to clean idle holes,
fuel pump also seem to be ok,
compression is good ,
ant ideas were to go from here with it.
thanks

[Joe Reeves]

The fact that squirting fuel into the carburetor throat results in having the engine start normally proves that the problem is with the carburetor... you're overlooking something there.

If you list the model number, we can tell you exactly what engine you have. As it is (1970's?)... really doesn't tell us anything.

Make sure that the br*** high speed jet located "horizontally" in the bottom center of the float chamber is perfectly clear, also that the choke is closing properly.

[rodeys]

ya that what im thinking but im prity sure its all clean.
iv done it twice with carb cleaner and air,
all totally stripped,
evinrude 6hp fisherman 6102e its comming up as 1971

[Joe Reeves]

Model 6102 is indeed a 1971 6hp Evinrude.

After pumping the fuel primer bulb up hard, loosen or remove the drain screw on the bottom front portion of the float chamber to make sure that the fuel mixture is actually entering the carburetor.

If fuel is there, trust me my friend, I've been with Evinrude/Johnson since 1960.... that indicates a faulty carburetor.

Check that the slow speed needle valve isn't shut off OR that the tip of the needle valve hasn't broken off in its seat.

(Carburetor Adjustment - Single S/S Adjustable Needle Valve)
(J. Reeves)

Initial setting is: Slow speed = seat gently, then open 1-1/2 turns.

Start engine and set the rpms to where it just stays running. In segments of 1/8 turns, start to turn the S/S needle valve in. Wait a few seconds for the engine to respond. As you turn the valve in, the rpms will increase. Lower the rpms again to where the engine will just stay running.

Eventually you'll hit the point where the engine wants to die out or it will spit back (sounds like a mild backfire). At that point, back out the valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest slow speed setting.

When you have finished the above adjustment, you will have no reason to move them again unless the carburetor fouls/gums up from sitting, in which case you would be required to remove, clean, and rebuild the carburetor anyway.

Thousands of parts in my remaining stock. Not able to list them all. Let me know what you need and I'll look it up for you. Visit my eBay auction at:

joe_omc32 | eBay

[rodeys]

hi joe,
so i primed the bulb till hard . opened up drain screw and fuel comes out,
unscrewed low speed needle , reinstalled till lightly seated then backed out 1 1/2 turns,
pulled motor over a few times and noting happened,
tried pumping bulb again but was still hard,
tried a few more times but no luck,
so put a small but into carb throat again and after 3 pulls engine fired up.
ran good and after warmed up i set idle,
all fine , started and stopped no problem
left it for a hour and started first pull.
thought i had it finnaly sorted so left it overnight,
went out tried to start but nothing again,
same as normal, wont start unless i put fuel into card troat ,
fecking thing is driving me nuts

[Joe Reeves]

Okay... you proved that you actually have fuel being delivered to the float chamber.

Did you clean the inside diameter of the bra$$ high speed jet that's screwed in and located horizontally in the bottom center portion of the float chamber bowl. It must be cleaned with a piece of single strand steel wire...... NOTE that solvent and compressed air alone won't do a proper cleaning job.

Also... When trying to start, is the choke butterfly actually closed?

[rodeys]

hi joe thanks for all ur replys.
yes prity sure i gave that a good clean.
tomorrow im going to take the carb off and give it another clean and ill make sure i clean that p***age with wire,
will let you know how i get on,
thanks

[Joe Reeves]

I think it's so funny that the site won't allow the slang terminology for a persons backside even when it's completely hidden within a proper word. That's why one must substitute the "s" with a "$".

P***age...... Pa$$age

Br*** ....... Bra$$

[rodeys]

hi .
so i took the carb off again ,
made sure to give everything a good cleaning,
wire, carb cleaner and compressed air,
put it all back together ,
gave plugs a good clean and checked spark had a good jump gap.
all good
so primed the bulb 3 pulls and away it went,
ran great when warm set idle and let it run for a good hour,
let sit for a while went back out one pull started straight away,
so thinking finnaly its sorted i left it for a few hours,
went back out primed bulb must of pulled 20 times and noting again,
checked spark just to be sure and all is good there
pulled a few more times but noting,
so tried a tiny spray of carb cleaner into the throat and half pull started again,
so to recap,
wont start from cold unless fuel or carb cleaner is sprayed into the throat,
one i get it started it runs great,
stopping and starting on half pull,
leave it for say 2hrs and it wont start agin,
really has me puzzled.
everything seems to be in order,

[Joe Reeves]

Too bad you don't live next door as I'd really like to see that engine, especially the carburetor as everything points to that's where the problem is.

The fact that cleaning the carburetor thoroughly, making sure that the high speed jet was clear made a instant difference and allowed the engine to start and run normally proves that.

Is that manual choke closing all the way properly?

[rodeys]

Is that manual choke closing all the way properly?[/QUOTE]

hi joe.
well thanks a million mate,
it was infact the choke,
was only closing 3/4 of the way,
gave it all a clean ,
seems to be starting ok now when cold,
i never even thought of looking at it mate,
was too hung up on why it was starting on the fluid from the front,
thanks rod

[Joe Reeves]

And I did mention that in my very first reply. "also that the choke is closing properly"

Someday you guys down under are going to listen to me!

[rodeys]

Originally posted by Joe Reeves View Post

And I did mention that in my very first reply. "also that the choke is closing properly"

Someday you guys down under are going to listen to me!

yes u did mate,
thought it looked ok untill i went at it.
supose i was too busy looking for bigger problem.
thanks