Yamaha 75 HP 2 Stroke squealing sound

[Divingfan905]

Hello community,

my 75 HP 2 stroke Yammie has recently started making squealing noises. This sounds appears and dissapears sporadically in and out of gear. Anyone has an idea on the cause of this sound? Am I looking at a shot bearing or Rod needle bearings?
I‘ve uploaded 2 Videos of the engine on idle and running:
https://youtu.be/GqgVTlvbL5Y?si=nBaU-Cdg1FfXzItu
https://youtu.be/WdYa7gExflo?si=5wQeXyHotiOWjeqx

Many thanks for your help and best greetings.

[ausnoelm]

I didn’t hear much of a squealing sound, but, I can tell you, it sounds very sick, do some basic investigation before you use it again. Compression test first off, and check plug condition while they are out.

[robert graham]

Drop lower unit and check to see if your motor has a driveshaft bushing that may need some grease?….

[Divingfan905]

I didn’t hear much of a squealing sound, but, I can tell you, it sounds very sick, do some basic investigation before you use it again. Compression test first off, and check plug condition while they are out.

I checked today the spark plugs and the compression.
spark Plugs looked a little bit oily, but nothing unusual.

Compression was even on all 3 Cylinders (100 psi)