Edson #910 Morse Single Lever Engine Control — Instructions
Shift and throttle cable connection points, neutral safety switch wiring and throttle connection for the Edson #910 Morse SL3 single lever engine control, plus the 910-SL3 dimensions.
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Single Lever Engine Handle, Faceplate & Morse SL3 Mechanism | #28204
- Single lever control; uses Series 33 control cables.
- Neutral lock-out mechanism revs the engine for battery charging.
- Mounts on any vertical bulkhead up to 1/2" thick; also available alone for bulkhead mounting.
- Stainless handle, stainless faceplate and gasket included.
| Dimension (data sheet) | Value |
|---|---|
| Faceplate | 3 7/8" × 3 7/8" |
| Mechanism width / mounting flange width | 4 1/4" / 5" |
| Mechanism length (side view) | 11 5/16" |
| Handle height above faceplate / handle offset | 7" / 1 5/8" |
| Lower arm depth | 15/16" |
Shift & Throttle Cable Connection – Control End
- “Push” and “pull” are the directions of cable motion to shift into forward or open the throttle. Check the engine manufacturer's manual for shift and throttle direction and adjustment.
- Hole numbers on the mechanism chassis correspond to the holes in the shift and throttle levers: e.g. cable mount to hole 4 on the chassis and cable end fitting to hole 4 on the lever.
- Cables and wiring should be pre-installed on the control before final mounting.
- Right-hand operation shown in the drawings; left-hand is opposite.
| Function | Cable | Hole | Engines listed by Edson |
|---|---|---|---|
| Push to go forward (shift) | 33C | 3 | Volvo I/O & inboards requiring “push” to go forward shift |
| OS (OMC) | 5 | ||
| KM (Mercury) | 6 | ||
| Pull to go forward (shift) | 33C | 4 | Evinrude, Johnson, OMC I/O, Mercury & Mariner O/B, Mercury I/O, Yamaha, Suzuki, Honda, Nissan, Tohatsu, US Marine & inboards requiring “pull” to go forward shift |
| OS (OMC) | 8 | ||
| KM (Mercury) | 7 | ||
| Push to open throttle | – | 1 | Johnson, Evinrude, OMC I/O, Mercury & 25, Yamaha 90 & up, US Marine |
| Pull to open throttle | – | 2 | Mercury I/O & O/B, Volvo I/O, Suzuki, Honda, Nissan, Tohatsu, Yamaha 70 HP & under |
Cable options at the control end: “KM” cable (Mercury), “OS” cable (OMC) and 33C cable, retained by a snap-on cover; the 33C cable uses a clip, flat head screw and swivel bearing. The 33C cable rod end should extend 0.125in (3.175mm) through the pivot.
Neutral Safety Switch
- The SL3 control has a neutral safety switch to prevent the engine starting in gear.
- With the control in neutral, connect one wire of a battery-powered test light or meter to the common terminal and one to the “NO” (normally open) terminal: the test light must light.
- Connect the switch between the ignition switch (start lead) and the starter solenoid.
- Caution: there must be continuity only in neutral; in gear there must be no electrical continuity.
Throttle Connection
- Make sure the control is in the neutral detent.
- The fuel lever should rest lightly against the idle stop on the carburetor.
- Connect the throttle cable to the fuel lever.
Disconnect the throttle cable from the motor before making idle adjustments: adjusting idle with the cable connected may jam against the idle stop, and the control may not function properly, damaging control, cable and/or motor.
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