Lower rpm when going in reverse - perkins/max-prop

[Diesel Bill]

I've seen some engines have different type throttle controls that use a single handle for fwd and rev. the reverse throttle stop can be adjusted for different RPM allowed. Might not be related to your situation, just a thought.

[valhalla360]

Originally Posted by gsalgado

But shouldn't it reach the same RPMS regardless of weather it's tied of not?

No they hydrodynamics are drastically different if you hold the boat in place. It takes a lot more power to maintain the same RPM.