I strongly recommend against it. You should bring the boat to a complete
stop and shut off the engine, before changing props.
JIMinFL

"seeray28" wrote in message
...
Snipage-
When the throttle is at 3/4 and the boat planed out the revs are at 4500
rpm. can I put a 23 pitch prop on with out messing with the outdrive
warranty?
Snipage-