I've got a 1979 Merc v175
I've got a 1979 Merc v175 that I recently inherited. On my 3rd time out with it I noticed that when I gave it throttle in reverse- the motor starts to rise up and seem to not be "locked" down as it should and then will lower back down as I decrease throttle. Any ideas on why this may be happening? Please help.
I've got a 1979 Merc v175 that I recently inherited. On my 3rd time out with it I noticed that when I gave it throttle in reverse- the motor starts to rise up and seem to not be "locked" down as it should and then will lower back down as I decrease throttle. Any ideas on why this may be happening? Please help.

