"Real Name" wrote in message
...


Now that I know what
is the proper trim, I use my gauges, but when I first went out in the
boat,
I figured out what the correct trim was by listening to the sound of the
engine and prop.

Help me understand this some more. Is there a range
that this happens, or is it fairly distinct ? Do the RPM's go
up, or do the R's go down and the speed go up? What
is the effect of trimming "too" far up/out? - will I know if
I trim too far up/out? Is it unsafe to trim too far up/out ?
(i.e. will the boat become unstable, and/or lose control?)
As far as listening to the "prop" - my Meerc 3.0L/A-1 is
some damn loud at speed, not sure I can hear the "prop".

Sorry for being such a nag, but new to actually owning
and operating a larger I/O with adjustable trim - all
experience is with smaller outboards.






"HarryKrause" wrote in message
...
wrote:

Real Name wrote:
The tone change is higher, like the prop is starting to come out of
the
water. Experiment with your outdrive trim and you will hear the
difference.

Why don't you just say, "sorry, I can't help you, because I just don't
know."



Smithers must have a pretty small boat. I can't hear "the tone" of my
Yamaha while I am in the cabin of Yo Ho. Instead, I rely on the
electronic
trim gauge Yamaha thoughtfully provided, along with the tach, the GPS,
and
the current wave conditions to determine "proper" trim.