73 Johnson 40hp idle set help

Crazydawgs29@gmail.com

Seaman Apprentice
Joined
Apr 8, 2017
Messages
38
OK so I rebuilt carb put it all back together and I can really figure out how to set idle. On the motor it says slow and start which setting do I put it on to adjust the slow screw?
 

Crazydawgs29@gmail.com

Seaman Apprentice
Joined
Apr 8, 2017
Messages
38
OK so I set the low speed screw while throttle was on slow and in neutral. When I bump it into gear I have to bump throttle up a little or it will die. Should I leave it or should I turn the slow screw a little?
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
The idle SPEED (RPM) screw is on the gear where a remote control cable attaches (if used). It merely limits how slow you can move the throttle control. Adjust it to desired idle speed in gear. Yes, it will speed up a tad when you shift to neutral.

The idle MIXTURE adjustment (needle valve) is on the carburetor. Adjust it for smoothest running when throttle is at slowest limited RPM, described above.
 
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