I found this on OMC stern drives...electric stringers. For what it maybe worth. Don't have the net address.
"Electric Stringers" can provide years of reliable service in the right hands. Don't be fooled into thinking these drives are inherently unreliable.
OMC Electric-shift Stringer Precautions:
1. Always operate the electric hi-tilt/lift in the fully down position when the engine is running or is started. It was not designed to be used as a power "trim," for adjusting prop shaft thrust angle. The unit can be operated briefly in a partially tilted position, as in shallow water or beaching conditions. (It's important to protect the upper unit ball gear drive)
2. Do not operate in reverse at more than 1000 rpm for a period longer than 3 minutes. Overheating could occur, as the intake water pickup efficiency is diminished.
3. Always use the correct OMC "C" or "premium blend" lower case lubricant. Check upper and lower gearcase lubricant levels before each use. Change lubricant seasonally. (Protect the electro-magnet coils & springs).
4. Do not electrically engage forward or reverse gear switch for long periods of time as electric shift coils draw a battery current of 2.25 amps (when switch is on) have no way of cooling out of the water. (You also will over heat the ignition coil and ballast resistor when the ignition key is left on for extended periods of time).
5. Always shift or engage gears at lowest possible engine idle speed, ideally less than 650 RPM.( It's important to protect the lower unit spring tabs). Well-tuned, smooth idling engines are essential to smooth shifting.
6. Always closely monitor engine operating temperatures, for proper impellor cooling water pump supply operation. Do not operate above 1200 RPM on garden-hose adaptor.
7. Always refrain from changing steering angle with stern drive tilted in the "UP" position (especially when fitted with "rope/pulley" cable steering).
8. Partially raise stern drive unit before and while trailering and while launching (to protect the lower skeg from dragging). Insure lowest part of drive unit is 15 inches above ground when on trailer. Store drive in fully down position"
"Electric Stringers" can provide years of reliable service in the right hands. Don't be fooled into thinking these drives are inherently unreliable.
OMC Electric-shift Stringer Precautions:
1. Always operate the electric hi-tilt/lift in the fully down position when the engine is running or is started. It was not designed to be used as a power "trim," for adjusting prop shaft thrust angle. The unit can be operated briefly in a partially tilted position, as in shallow water or beaching conditions. (It's important to protect the upper unit ball gear drive)
2. Do not operate in reverse at more than 1000 rpm for a period longer than 3 minutes. Overheating could occur, as the intake water pickup efficiency is diminished.
3. Always use the correct OMC "C" or "premium blend" lower case lubricant. Check upper and lower gearcase lubricant levels before each use. Change lubricant seasonally. (Protect the electro-magnet coils & springs).
4. Do not electrically engage forward or reverse gear switch for long periods of time as electric shift coils draw a battery current of 2.25 amps (when switch is on) have no way of cooling out of the water. (You also will over heat the ignition coil and ballast resistor when the ignition key is left on for extended periods of time).
5. Always shift or engage gears at lowest possible engine idle speed, ideally less than 650 RPM.( It's important to protect the lower unit spring tabs). Well-tuned, smooth idling engines are essential to smooth shifting.
6. Always closely monitor engine operating temperatures, for proper impellor cooling water pump supply operation. Do not operate above 1200 RPM on garden-hose adaptor.
7. Always refrain from changing steering angle with stern drive tilted in the "UP" position (especially when fitted with "rope/pulley" cable steering).
8. Partially raise stern drive unit before and while trailering and while launching (to protect the lower skeg from dragging). Insure lowest part of drive unit is 15 inches above ground when on trailer. Store drive in fully down position"
