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Author Topic:   Knob on OMC side mount control

Plotman posted 06-25-2007 03:02 PM ET (US)
I have a new-to-me 15 with a Johnson 70 and a standard OMC side-mount control. Beneath the key switch, there is a black know that I can turn from side to side. What does this do? It seems to turn continuously - at first I thought it was the choke, but there are no detents or stops that would indicate (on or off). I've never had an OMC before.
Also, there is a plug just below this with three connectors - what is that for?
Thanks,
David
shipskip posted 06-25-2007 09:49 PM ET (US)
From the OMC Recreational Outboard Servie Manual, Section 9 - Remote Control, Page 9-5.........
Quote.
1. To adjust control handle friction, start engine and move the control handle to the forward throttle range. Apply just enough friction to allow easy movement in the forward throttle range, yet not allow vibration to change the throttle setting. Friction is adjusted by turning the knob located below the key switch. Clockwise rotation increases friction.
End quote.
shipskip posted 06-25-2007 09:53 PM ET (US)
One clarification. "Control handle" refers to the main shift/throttle handle, not the fast idle lever.
jimh posted 06-25-2007 11:22 PM ET (US)
How does the knob affect the boat's performance?
Plotman posted 06-26-2007 12:09 AM ET (US)
Thanks, Skip.
Jim H - apparantly, it doesn't. I was hoping for a turbo-boost, which is why I asked here. :)
Tom W Clark posted 06-26-2007 11:22 PM ET (US)
Yes, the knob is the throttle friction adjustment.
The three hole receptacle below that is for an optional instrument wiring harness plug-in (if I remember correctly.)
waterguy posted 06-27-2007 11:24 PM ET (US)
Like plugging in a Tach? I think I did that with an older Evinrude I once had.
JMARTIN posted 06-28-2007 12:30 AM ET (US)
Tach, volts, and trim guage if it is like my 1992 OMC. John

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Author	Topic: Knob on OMC side mount control
Plotman	posted 06-25-2007 03:02 PM ET (US) I have a new-to-me 15 with a Johnson 70 and a standard OMC side-mount control. Beneath the key switch, there is a black know that I can turn from side to side. What does this do? It seems to turn continuously - at first I thought it was the choke, but there are no detents or stops that would indicate (on or off). I've never had an OMC before. Also, there is a plug just below this with three connectors - what is that for? Thanks, David
shipskip	posted 06-25-2007 09:49 PM ET (US) From the OMC Recreational Outboard Servie Manual, Section 9 - Remote Control, Page 9-5......... Quote. 1. To adjust control handle friction, start engine and move the control handle to the forward throttle range. Apply just enough friction to allow easy movement in the forward throttle range, yet not allow vibration to change the throttle setting. Friction is adjusted by turning the knob located below the key switch. Clockwise rotation increases friction. End quote.
shipskip	posted 06-25-2007 09:53 PM ET (US) One clarification. "Control handle" refers to the main shift/throttle handle, not the fast idle lever.
jimh	posted 06-25-2007 11:22 PM ET (US) How does the knob affect the boat's performance?
Plotman	posted 06-26-2007 12:09 AM ET (US) Thanks, Skip. Jim H - apparantly, it doesn't. I was hoping for a turbo-boost, which is why I asked here. :)
Tom W Clark	posted 06-26-2007 11:22 PM ET (US) Yes, the knob is the throttle friction adjustment. The three hole receptacle below that is for an optional instrument wiring harness plug-in (if I remember correctly.)
waterguy	posted 06-27-2007 11:24 PM ET (US) Like plugging in a Tach? I think I did that with an older Evinrude I once had.
JMARTIN	posted 06-28-2007 12:30 AM ET (US) Tach, volts, and trim guage if it is like my 1992 OMC. John