1988 225 Evinrude Problem - The Hull Truth

otterbanx · 07-18-2007, 02:24 PM

Had to jump start to get motor cranked this weekend and noticed the following 2 problems:
(1) Tach showed idle to be around 12-1500 rpm (but not true) motor warmed up.
(2) the alarm started to "chirp" softly but got louder then soft again about 10 minutes underway.
Felt H2O output and wasn't too hot to touch and strong stream. 3/4 tank of oil. By the time I slowed and turned around to head back the alarm softened and quit. Resumed speed and only heard soft chirping for about 30 seconds longer. Didnt hear alarm rest of day.

Any ideas? I'm thinking thermostats are due to be replaced.

Thanks,
--Taylor

A1 Outboard · 07-18-2007, 08:17 PM

The chirping noise is probably a bad pickup sender inside the oil tank. The electronics will cause all kinds of signals when they go T.U. Trace the wires from the tank to the motor and disconnect them at the motor. You can visually watch the oil level instead of relying on expensive electronics.

It sounds like your motor has hot had full maintenance for a while, do it all, pump, t'stats, tune, decarbon and test the charging system to make sure it's not delivering a faulty tach signal.