PartsMan Well-known member Joined Nov 11, 2010 Messages 221 Reaction score 0 Location Enid, OK Mar 7, 2011 #1 Does anybody know what the gear ratio is on a 1993 Johnson 20hp? I was playing with a prop calculator and need to know what to plug in.
Does anybody know what the gear ratio is on a 1993 Johnson 20hp? I was playing with a prop calculator and need to know what to plug in.
crazymanme2 Moderator Moderator Joined May 26, 2009 Messages 1,724 Reaction score 2 Location West Olive Mich Mar 7, 2011 #2 I believe its 2:1.To make sure put your motor in gear take cover off & count how many times the flywheel goes around compared to the prop.
I believe its 2:1.To make sure put your motor in gear take cover off & count how many times the flywheel goes around compared to the prop.
PartsMan Well-known member Joined Nov 11, 2010 Messages 221 Reaction score 0 Location Enid, OK Mar 7, 2011 #3 That's what I was thinking. Just thought someone might know for sure here. I took her out yesterday and I am WAY over propped.
That's what I was thinking. Just thought someone might know for sure here. I took her out yesterday and I am WAY over propped.