1976 55 hp johnson

[plmoss21]

I have a 1976 55hp johnson i do not know the serial number. I can get it to crank just fine but it will not start. I had it running when i first got to the lake but then it died and would not start back. Also the top idle screw vibrates out at high speed so i got some light duty locktite but I do not know how to adjust the idle could you please let me know the procedure for setting the top and bottom idle screws.

 

[fireman57]

Re: 1976 55 hp johnson

Sounds like it might be time to rebuild the carb. Get an OEM manual and it should be pretty simple. I do not have a manual for your engine but locktite should not be the answer for that adjustment screw.

 

[rayjay]

Re: 1976 55 hp johnson

The idle screw threads should be an interference fit in the advance arm. You need a manual to set the carbs and timing. I would recomend OEM carb kits instead of aftermarket.

 

[plmoss21]

Re: 1976 55 hp johnson

thanks guys bye the way would anyone be interested in buying it I will give you the boat and trailer free

 

[angus63]

Re: 1976 55 hp johnson

You can place an ad in the iboats classified

 

[plmoss21]

Re: 1976 55 hp johnson

I got a factory carb rebuild kit. I am going to attempt to put it on tommorrow, wish me luck. Do you have any tips before i start the project?

 

[fireman57]

Re: 1976 55 hp johnson

Yes, a manual would be nice.

 

[plmoss21]

Re: 1976 55 hp johnson

i got the carb off how do you change the orfice i got the float, pin, and seat

 

[fireman57]

Re: 1976 55 hp johnson

Use a good carb cleaner and compressed air to make sure that it is clean.