The Johnson 1955 25 hp RDE-17 (electric start) came with a mercury switch
The Johnson 1955 25 hp RD-17 (manual start ) did not come with mercury switch
So far all the RD-17,s I have worked on – I split the block to install a carbon seal
I do not know what resistor to use to turn a 6 volt choke solenoid into a 12 volt choke solenoid
I will be out of town till Sept 5th
If you would like to talk on phone when I come back-look me up in the directory
Everything I have learned about these 25 hp s . I learned from these message boards-thank you Frank
Al Klebek
