1976 70 hp johnson has never been decrabed.

minocqa

Seaman
Joined
Jul 16, 2003
Messages
68
hi<br />i have a 1976 johnson 70 hp.<br />i have owned this motor since it was brand new<br />i have never decarbed it, as a mattter of fact i never even heard of decarbing until i found this forum.<br />is this something i should do?<br />i read the post about decarbbing<br />my qustion is my motor doesnt have shader valves at least i havent seen any on it <br />would i be able to spray the decarb spray in the fogging hole. or should i remove the cover off the carbs?<br />any help would be greatly appeciated.<br />thanks<br />Don
 

minocqa

Seaman
Joined
Jul 16, 2003
Messages
68
Re: 1976 70 hp johnson has never been decrabed.

Hi DJ<br />thanks for the link, i read it and printed it.<br />do you think i can spray the Seafoam deep creep threw the fogging hole?<br />i put seafoam in my gas and it seemd to help the perfomance a little. but my motor doesnt have much power. i'm going to rebuild the carbs, and check the compression, the probelm is my boat is 270 miles away from my home at my cabin so i cant do anything until next trip up, i'm just trying to get as much info as possible on here before i go back up there to work on it.<br />thanks again<br />Don<br /> <br />Don
 
D

DJ

Guest
Re: 1976 70 hp johnson has never been decrabed.

Don,<br /><br />You can do that. Really soak it, about three cans.<br /><br />Change the spark plugs after it "clears up". Use only Champions.
 

minocqa

Seaman
Joined
Jul 16, 2003
Messages
68
Re: 1976 70 hp johnson has never been decrabed.

thanks DJ<br />what should i gap the champions chart<br />says ..030 and mecahnic told me .040<br />thanks again<br />Don<br />ps are there any other good links you can think of that i should print to take with me?
 

Walker

Captain
Joined
Jun 15, 2002
Messages
3,085
Re: 1976 70 hp johnson has never been decrabed.

We had to decrab the whole fire station one time.
 

minocqa

Seaman
Joined
Jul 16, 2003
Messages
68
Re: 1976 70 hp johnson has never been decrabed.

Hahahahahaha that will happen sometimes<br />i see what i wrote now decrab hahahahahaha
 

DHPMARINE

Captain
Joined
Dec 16, 2003
Messages
3,688
Re: 1976 70 hp johnson has never been decrabed.

I guess it was a long week,for me,just picked up on the decrab.But it probably justifies deep creep.<br />DHP
 
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