64 3hp johnson

[kjay]

so i have run into a few problems with this little motro but i think its cool so my 9 year old nephew have been working on it together for fun as we cant afford a vacation.

i am going to change the carb kit, i cleaned all the needles and such will a new kit make a difference compared to just cleaning it.

second what the proper way to start this engine. i see instructions say open vent turn on gas valve set magnito to start pull choke.

i notice the low speed needle has a half wing does this serve any function when starting. thank you

 

[Vic.S]

Re: 64 3hp johnson

Once the low speed needle has been correctly set you should not normally need to change the setting.

See the link in Tashasdaddys "Top Secret File" to Joe Reeves' instructions for setting carb needles.

Otherwise start as you say

Fuel on, vent open, pull choke, set throttle to start position.
(May want to experiment with throttle opening to find the best setting.)
Pull string.

The carb kit should contain all the parts you are likely to need but you may not need them all.

 

[cajuncook1]

Re: 64 3hp johnson

Welcome Iboats Kjay,

Here is a link for the breakdown of your motor. Find the model number on your motor and select from one of the listing listed from link below.

http://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1964&hp=3


Check your PM (private message) when you log in

cajuncook1

 

[airshot]

Re: 64 3hp johnson

Do get the carb rebuild kit...and thoroughly dissassemble and clean, blow out the passages in the carb, $20.00 well spent, I just picked one of these up myself, repaired it then sold it, fun project!! Check compression, spark,
and be sure you have clean fuel. Make sure the air cleaner( tube) is connected as it won't run without it. Have fun....

Airshot

 

[kjay]

Re: 64 3hp johnson

Do get the carb rebuild kit...and thoroughly dissassemble and clean, blow out the passages in the carb, $20.00 well spent, I just picked one of these up myself, repaired it then sold it, fun project!! Check compression, spark,
and be sure you have clean fuel. Make sure the air cleaner( tube) is connected as it won't run without it. Have fun....

Airshot

oh man, air connector tube where is that, i think i am in over our head. thanks for all the help guys, well we are learning i appreciateeveryones help and patients.

 

[airshot]

Re: 64 3hp johnson

You should have a long tube looking object that attatches to the front of the carb then turns toward the rear of the motor with its opening facing the rear of motor. It is under the cover on the right side facing the motor. May appear to look like a little muffler but is an air snorkel, without it attatched to much air enters the carb and motor will fire but not stay running.

Airshot

 

[kjay]

Re: 64 3hp johnson

it gets better , there is a needle spring in the kit, wasnt one on my little engine like it should have been, could you please tell me where that goes and how so sorry

 

[tx1961whaler]

Re: 64 3hp johnson

That spring probably attaches the needle valve to the float. Some motors did not originally come with them, but it is a good idea to put it on.

 

[kjay]

Re: 64 3hp johnson

That spring probably attaches the needle valve to the float. Some motors did not originally come with them, but it is a good idea to put it on.

could you tell me how does it go on the needle thanks so much i am almost embarassed to ask question its getting pathetic the level of my skill

is this on correct

 

[tx1961whaler]

Re: 64 3hp johnson

I think goes the other way around. One end loops around the needle, the other slips into to float.

 

[cajuncook1]

Re: 64 3hp johnson

Here is a picture / diagram that may help a little. Float, spring pin and needle.

The small end clips on the needle, but the larger clip side sides on the side of the flange of the float. When the carburetor bowl fills it push the float up and stops more fuel from getting in by pushing the needle up and just the opposition happens when the bowl starts to empty.

If I have that wrong someone please correct me.




We all have learned from others, so don't apologize. You never know, you might just scrape our butt off the floor when we need help.

 

[kjay]

Re: 64 3hp johnson

Here is a picture / diagram that may help a little. Float, spring pin and needle.

The small end clips on the needle, but the larger clip side sides on the side of the flange of the float. When the carburetor bowl fills it push the float up and stops more fuel from getting in by pushing the needle up and just the opposition happens when the bowl starts to empty.

If I have that wrong someone please correct me.

hopefully thats more like it.
We all have learned from others, so don't apologize. You never know, you might just scrape our butt off the floor when we need help.

i have the entire carb off and cleaned going to take it to work tomorrow and air gun it hopefully we are getting closer thanks so much guys

 

[airshot]

Re: 64 3hp johnson

Be sure to replace the packing in the low speed needle, they are the small fiber orings in the kit. Also note that these rebuild kits fit a variety of small engine carbs so there may well be some leftover parts that do not fit your particular model. have fun let us know how things go.....

Airshot

 

[kjay]

thank you 1964 3hp johnson

thank you 1964 3hp johnson

i just wanted to let you guys know, when i bought this motor i was told runs like a champ, lol now it does thanks to you guys. i have replaced rewind coil,
rebuilt the carb
and put all new ignition parts
3 pulls and away she went worked great, still needs a little fine tuning but thats the fun part. and now the pay off, thank you i have a happy nephew

 

[cajuncook1]

Re: 64 3hp johnson

Cool!!!!! Wow that little fella is grinning from ear to ear!!! Look at the size of that fish!!!!! Thanks for the picture and up date.....You've made my day sir!!

 

[tx1961whaler]

Re: 64 3hp johnson

It will run for decades more......
By the way, even though that is a 1964 motor and is advertised as a 50:1 gas oil ratio model, it does not have a full set of jeweled bearings and would appreciate some extra oil, maybe 40:1. It will actually run fine down to 20:1.

 

[kjay]

Re: 64 3hp johnson

i have her running at 25:1 seems pretty good. would rather a lil smoke than a lil fire, thanks again guys. it was classic when my nephew watched me pull this little sucker and it starte d his eyes lit up. so did mine lol did not think i could do this.