1972 50 hp johnson wont idle

[catfishingcrestliner]

I have a 1972 johnson 50 hp (model#50273c)that will not idle or run at low speed . Now you can run it on the water full throttle and it runs great. carbs have been rebuilt but no change . thanks

 

[machinist]

Re: 1972 50 hp johnson wont idle

If you are sure its not bad fuel i have had this problem with the fuel pump gasket not being placed in there properly or check that it has not shook loose.

 

[catfishingcrestliner]

Re: 1972 50 hp johnson wont idle

i have compleatly drained all old gas and refilled with new 50-1 . i had a buddy look at it and he told me that is is just pumping to much gas in the carb= loading up . lol but cant figure out how to fix it

 

[boobie]

Re: 1972 50 hp johnson wont idle

First thing to do on that mtr is check your compression. Next do a a good de-carb on it if your compressin is okay.

 

[jbjennings]

Re: 1972 50 hp johnson wont idle

i have compleatly drained all old gas and refilled with new 50-1 . i had a buddy look at it and he told me that is is just pumping to much gas in the carb= loading up . lol but cant figure out how to fix it

It can't pump too much gas into the carbs if your floats and float needle valves are working properly. It won't idle at all? How to you get it in gear to run wide open? Check and see if your spark advance is coming all the way back to the idle stop, and that the stop is set to the proper timing. Also, check and be sure your throttle butterflies are closing all the way.
JBJ