Hey folks,
I have the same engine. Replaced the impeller kit. Gear oil replaced and was clean. Upon initial startup, it buzzes as expected, then quiet.. warms up, runs low for 5 min… after a bit, it starts buzzing… temp sensor shows water max at 98 degrees spouting out on idle. It seems if I wiggle the key/ignition on the throttle, at times, I’m able to stop it… almost like there’s a short. Not sure how to test or isolate the issue.
The outboard is used and acquired it w/ oil tank removed and told they just mix the gas w/ oil when they fill it up. Is there a few steps outlined somewhere you could point me to? Appreciate the help.