What year is my Johnson 35 Sea Horse. Model Number is RD-21B Serial# 1948606.<br /><br />Thanks.<br /><br />Also what should acceptable compression be on this motor?
Hi,<br />It is a 1959. Comp. on that yr motor is around 125#. I've seen em run ok with 90#, but 120 is a nice number to have on each cyl.<br /><br />...have fun...corm
