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  1. greasemonkeyjmj

    1981 Evinrude 25 hp Wide open throttle timing

    I have a 1981 pull start Evinrude 25 horse, I got a 35 horse donor engine and swapped the electric components over to make mine electric start, Including everything to make it charge the battery. of course I had to swap the starter bracket, which has the Wide open timing bumper stop on it, and...
  2. greasemonkeyjmj

    Adding external pulse fuel pump to VRO Engine

    I am adding an external pulse fuel pump to my 1985 Evinrude 70 Horse. I am going to make a plate to mount the pump on, my question is, since I am using a pulse hose from my crank case instead of it mounting against the engine block and getting its pulse, will it matter of the pulse hole on the...
  3. greasemonkeyjmj

    Connecting 2 batteries

    I have 2 batteries on my pontoon. I have one strictly for cranking, and one to run the stereo, fishfinder and such. the battery for the stereo etc. is not connected to the cranking battery in any way, therefore it does not get charged by the engine. I am wanting to connect the 2 batteries...
  4. greasemonkeyjmj

    1985 Evinrude 70 Charging questions

    I have an 1985 Evinrude 70 Horse Model # E70TLCOS, the engine has been showing a charge output of around 13.8 with a fully charged battery. yesterday it started showing a output of 15.5 volts up to 15.7 volts with a fully charged battery, I don't know if its anything to do with it, or another...
  5. greasemonkeyjmj

    1985 Evinrude 70 Horse, How can I get it to manually lower off of trim ?

    I have a 85 Evinrude 70 Horsepower I bout today, it has a bad trim motor. I am wanting to run it on my boat and make sure its ok before I buy a new trim motor. I opened the screw on the right side and got it to drop down from tilt, but it stopped at the trim rams and wont go any further. How do...
  6. greasemonkeyjmj

    can anyone help me identify what year model lower unit I have

    I have a 1987 Evinrude 48 SPL. I am wanting to change out props to go with a different pitch, but Someone has put a different year lower unit on the engine and I am trying to find out what year/size so I can get the correct prop Apparently the shift rod operates backwards than my original lower...
  7. greasemonkeyjmj

    is there anyway to test if a tach is giving correct reading ?

    My 87 Evinrude 48SPL tach is only showing 2800 RPMs at WOT I am running it n a Grumman 24 foot pontoon, the engine sounds to me like it is turning higher than 2800, my prop is a 13 3/4 x 15 aluminum 3 blade. I am pretty much sure this is to much prop for this engine, but I dont want to start...
  8. greasemonkeyjmj

    Wrong Prop, bad tach or both ?

    I have a 24 foot grumman pontoon with a 48hp Evinrude, newly rebuilt due to score pistons and cylinders. I am running a 3 blade 13 3/4x15 prop. Average speed with 2 people according to GPS is 15 MPH. the boat didnt have a tach and I wanted one especially with the rebuild job so i installed one...
  9. greasemonkeyjmj

    48 SPL Evinrude runs on 1 cylinder unless Primer is held

    I have a 1987 Evinrude 48SPL, newly rebuilt with 3 gallons of fuel run thru it on the hose. Compression is 145 PSI on both cylinders, new plugs with blue spark jumping 7/16 gap. I notice on the hose that thew bottom cylinder would drop out every so often, but i could throttle it up and the...
  10. greasemonkeyjmj

    Wide open timing, did I miss anything ?

    I rebuilt my 1987 Evinrude 48 SPL last fall, due to the pistons being badly burned down the sides, Due to winter setting in, I didnt have time to run it on the water, I have only gotten to run it on the hose. Well I am getting ready to do a water test and I am trying to finish up any last minute...
  11. greasemonkeyjmj

    dissapointed after powerhead rebuild, help needed

    Some may remember i bought a 1987 Evinrude 48SPL that wouldnt idle consistently, i tore the carbs down and they were spotless, but i soaked them anyway, later on I discovered both pistons were ruined and the block was scored, i just got it back from being bored and new pistons, I put everything...
  12. greasemonkeyjmj

    will it run ?

    I have my 1987 Evinrude 48SPL hanging on a stand, my questions are, will it start without having the harness hooked up, and if so, will it hurt my charging system to run it like that. thanks
  13. greasemonkeyjmj

    Evinrude with oily points

    hello my latest project is a 72 or 73 evinrude 25 horse with points type ignition. i pulled the flywheel off to take a look at the coils and points and such, and discovered that eveything under the flywheel was covered with what smells like premixed fuel. my first thought was that the upper...
  14. greasemonkeyjmj

    evinrude work twin year ID

    i bought a 25 hp Evinrude work twin and i am having trouble breaking down the engine info. i havent saw it in person, but the serial number the guy read to me was E25RWC1m or it may have been a L instead of a 1 is there really any difference in a work twin than a regular recreation evinrude ...
  15. greasemonkeyjmj

    mercury or evinrude ?

    I have a 73 omc 50 horse and a 76 mercury 50 horse. I know 50HP is supposed to be 50Hp but not getting into prop swapping and all the rest, which would be the best power for a 16 ft fiberglass bassboat ?
  16. greasemonkeyjmj

    what lube to use on my remote

    I am replacing bushings and a gear in my omc powershift II remote control box. i was wanting to clean all the old gunk out and put something back on the bushings and moving surfaces to reduce friction. does anyone have any suggestions on what to use ? thanks
  17. greasemonkeyjmj

    omc thermo switch and choke wiring diagram

    is it neccesary to hook up the thermo switch on a 1973 omce 50 horse? the wiring from the thermo has been unhooked from the wiring block and also the 2 wires from the choke solenoid needs to be hooked back up. but i am having trouble finding a diagram that actually shows the right location on...
  18. greasemonkeyjmj

    melted wire going to indash voltage meter

    hey folks, over the weekend i was outside and smelled something burning. well i looked over at my boat and there was smoke going everywhere from under the back deck. that is where one battery is, and also the fuels tank, so you can about imagine how quick i was trying to get the battery cables...
  19. greasemonkeyjmj

    johnnyrude tach is over reading showing 4K at idle

    i have a 73 johnson 50 horse that had a blown powerhead. the tach would read 2K at idle. on the water it seemed to read pretty close, the engine wouldnt turn up like it used to, but the tach was showing about 4300. well i replaced the powerhead with another one, now at idle it read 4k i havent...
  20. greasemonkeyjmj

    will a 1971 johnson and a 1974 johnson 50 horse powehead interchange ?

    i have a 74 johnson 50 horse 2 cylinder. that needs a piston and rods and crank. i have found a 71 johnson 50 powerhead i was wondering if they will interchange ? i was thinkin a 71 was electric shift. i didnt know if this would make a difference thanks
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