I am converting this motor to remote control and noticed there is an electric primer system listed in the part list for my year motor. I would rather go this route instead of the electic primer soleniod. My questions is the 1993 and up carbs have a primer nipple on them and I can't find one on...
I have a 1974 Johnson 15hp that I have found everything to convert it to electric start. Now I would like to find the parts to install electric choke. I have found the bracket needed but had no luck on the solenoid and I am not sure what else I need. Does anyone have a picture of how this all...
I just aquired the above motor and its has 92 psi on both cylinders. This seems low but they are both exactly the same and from what I understand this is more important. I would like to change the jets in the carb to bump this to 9.8 and install boyesen reeds. Is the compression to low to get...
I broke off one of the (4) bolts on the water pump housing on a Johnson 15hp LU. There is about 1/4" of stud exposed. Whats the best way to remove the broke bolt? Thanks
I am restoring the above motor and have a couple of questions. I want to replace the reed valves with boyensen reeds. I know that in the later model 15hp's had a spacer between the reeds and stops to allow the reed to open more. Would this offer any advantage with the boyensen reeds? Another...
My dad has aquired this motor and want me to try to get it running. The carb is missing the slow speed needle valve OMC# 311340 which is no longer avalible. I looked up a '68 model and it uses a different needle valve OMC#313240 which is avalible. Is there anyway to know if this will work? Thanks
I have the above motor and would like to know if anyone has changed out the gear style thottle linkage with a cable system. If so, what was invloved? Thanks
I am looking for a used lower unit for a 1974 Johnson 15hp. Does anyone have any ideas on where to look? Also does anyone know what years will interchange lowers w/ this model. What should I expect to pay? Thanks
I came across 1974 johnson 15hp with a good powerhead but the lower was in bad shape. The bearing carrier has been broke out almost like the prop had hung on something and pull the carier out. Any way the lower has sat for who knows how long with no oil and has rusted where the prop shaft will...
I just rebuilt the lower unit on my Johnson 15 due to hitting a log and busting the pinion gear. This was the first lower unit i have rebuilt. I got it all back together last night and the motor runs and shifts great but it is not pumping water. I replaced the impeller while i had everthing...
I hit something this weekend and have borken sommething in the lower unit on my Johnson 15hp. When you put it in gear it clacks and stalls the motor. Upon draining the lower unit I found metal fillings so a rebuild has been started. This will be the first lower unit I have rebuilt so thanks...
