2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 240Get this manual
Outboard Speed Control System and Safety
The outboard speed control system starts here at the remote control lever(single lever remote control) and ends here on the powerhead
What is most important?
When control lever is moved from FORWARD (or REVERSE) to NEUTRAL Powerhead speed must slow down to allow operator to shift into NEUTRALOperator must be able to STOP propeller