-
2001 225 efi knocking under load
The boat idles well with no noise and will idle in gear with no noise. When I take off i get a loud knocking noise. Compression is good on all cylinders. I think it could be a bad clutch dog but im not 100%.
-
Mercury 3L/4 Stroke/Verado Moderator
If you would, please take a moment to review the Announcements at the top of the Forum, and be sure to provide the Required Info (serial number) when posting. Thanks! 
Good starting point is to check gear lube for contamination or metal, verify proper shift-cable adjustment.