Dear Experts,
I am working on 2 nos outboard engine of
Mercury VERADO, 250 HP, GEN 2, 4 strokes
Model: Model: 1250V34ED,
The fault of the engines -
1. Knocking noise from the inside engines at low RPM.
2. During running with load (RPM 3000-4000), reduce the RPM (700-1000) automatically...