1986 - 50 HP Mercury Engine Trouble
 

My 86 Tracker engine has two top speeds. The engine starts ok, idles fine
and is reliable. However, sometimes (most of the time) it has two
high-end top speeds. When it is “normal” it turns about 60k rpms. The
lower rpm is about 45-48. Sometimes it kicks in when hitting a wake.
Other times it stays at the slower speed. It was just tuned up and the
top coil stator under the flywheel was replaced. Does anyone have any
idea what the problem is and how it may be repaired? Thanks.

WOW, 60,000 rpm. That baby really cranks!
G
"Mark the shade tree guy" wrote in message
lkaboutboats.com...
My 86 Tracker engine has two top speeds. The engine starts ok, idles fine
and is reliable. However, sometimes (most of the time) it has two
high-end top speeds. When it is "normal" it turns about 60k rpms. The
lower rpm is about 45-48. Sometimes it kicks in when hitting a wake.
Other times it stays at the slower speed. It was just tuned up and the
top coil stator under the flywheel was replaced. Does anyone have any
idea what the problem is and how it may be repaired? Thanks.

Yes it doubles as a nuclear missle! I messed up so that we have that fixed
any idea what the issue may be with the boat? Thanks.

My guess is a loose electrical connection. Make sure all battery
connections and electrical connections on the power pack are clean and
tight.


--
Tony
my boats and cars at http://t.thomas.home.mchsi.com
"Mark the shade tree guy" wrote in message
lkaboutboats.com...
My 86 Tracker engine has two top speeds. The engine starts ok, idles fine
and is reliable. However, sometimes (most of the time) it has two
high-end top speeds. When it is "normal" it turns about 60k rpms. The
lower rpm is about 45-48. Sometimes it kicks in when hitting a wake.
Other times it stays at the slower speed. It was just tuned up and the
top coil stator under the flywheel was replaced. Does anyone have any
idea what the problem is and how it may be repaired? Thanks.

I would check all your electrical and replace the plugs to try and
illiminate the problem. It sould like you are dropping a cylinder. I
have rebuilt a couple of old 56' Johnson's with simular problems one
had a bad coil the other had a bad stator.

Good Luck
Ted

On Mon, 02 May 2005 13:51:21 -0400, "Mark the shade tree guy"
wrote:

My 86 Tracker engine has two top speeds. The engine starts ok, idles fine
and is reliable. However, sometimes (most of the time) it has two
high-end top speeds. When it is “normal” it turns about 60k rpms. The
lower rpm is about 45-48. Sometimes it kicks in when hitting a wake.
Other times it stays at the slower speed. It was just tuned up and the
top coil stator under the flywheel was replaced. Does anyone have any
idea what the problem is and how it may be repaired? Thanks.

Check for spark by putting the plug wire in your mouth, and turn over
the engine.

Did I tell you I have a long driveway?