Re: Trim Limit Switch
the 89 spl motors had no trim limit switch, the trim"limiting" was done with the up relief valving. above about 2000 rpm or so the downward thrust of the prop will force the valve open and disallow hydraulic presure to the tilt ram.
you will have cavitated long before you hit the top of the trim pins.
takes some practice to get used to power trim and trim guages are mostly usless.
I suggest reading the owners manual or better have an experienced helmsman show you. not all trim positions are best for all speeds,loads and seastates.
usually to accelerate from a standing start the motor needs to be in the full down position then trim the bow up as needed for the best ride and planing speed.
remember the stern controls a boat not the bow.
if the stern is to high(to much trim down) the bow may try to steer the boat with potentially disasterous results, stern to low(engine trim to high) and prop ventilation will occur with potentially disasterous results.
you will find high speed cornering will ususally require trimming down and back up after the curve or prop ventilation and loss of stern control will result normally.
the whole key to controling a boat is controlling the stern, if you cannot your out of control.
barring bow thrusters boats are 99% controled by moving the stern and forcing the hull to pivot on its axis.
