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  1. brian3127

    Torque

    I have a 1975 Johnson 40-hp 40el75c The book only tells me the amount of torque for the head bolts. I need the torque spec for the water jacket plate
  2. brian3127

    Impeller

    Motor was shooting water out of the exhaust port yesterday. Now it's not today this sucks I have a Johnson 40hp 40el75c I have a halls sportcenter down the road they want about $73 for the rebuild kit is it really that much. Tried searching here with no luck is there any place cheap to buy the...
  3. brian3127

    Mixing oil

    I have a 1975 40-ph Johnson outboard motor I have ran the motor on pennzoil two cycle oil ever since I've had the boat. Today I couldn't find any pennzoil so I bought quakerstate two cycle oil. I filled the tank with 3 gallons of gas and poured the recommended amount of oil into the can. So...
  4. brian3127

    Prop pitch vs efficient use of gas

    I have a 1975 johnson 40-hp 40el75c and it sits on a 14 tri hull boat use mainly for fishing and maybe cruising around never pull anything I have been told on this sight that it should be ran at 5000 to 5500 rpm at wot. I have read that it should be ran at 4500 rpm. My boat is running at 3800...
  5. brian3127

    Link n sync 1975 40hp Johnson

    I have a clymer manual for my motor. And to do a link n sync it says to move the throttle control until the intake manifold projection is centered between the 2 throttle cam marks. If the throttle valve is not closed with the cam follower roller touching the cam, loosen the throttle arm clamp...
  6. brian3127

    Primer bulb

    I put a new primer bulb and connectors on my gas tank. My problem is that the bulb will not get firm when pumped up and there is air in the see through filter. I can get rid of the bubbles by pumping the bulb. But if it sits for awhile air gets in the filter Could it possible be the gas tank. It...
  7. brian3127

    wot

    i have a 1975 40hp johnson serial number 40el75c what should wot be i ran it this weekend and it ran about 3700 to 3800
  8. brian3127

    tach issues

    The boat has a tach and it workded before i decided to rebuilt the boat I never put it back on I want to put it back on what wires do I hook it to. The wire colors I have are Red with purple stripe White Purple with white stripe Blue with white stripe Blue Black that jumps from the key to the...
  9. brian3127

    setting the gap for the points

    ok let me start off by saying i never set the gap for the points until yesterday. i was wondering if it was done correctly. i took the flywheel off. then i noticed that both points were touching until the lobe comes around and opens the gap. The highest point of the lobe is where you set the...
  10. brian3127

    Pulled spark plug wires

    I have a Johnson 40 hp model 40el75c With the motor running I pull the top plug wire and the motor stalls out. When I pull the bottom plug the motor stays running. What does that mean. The first time I did it I pulled the top one and it stayed running. Each time I pull the wires I get shocked so...
  11. brian3127

    i want to plug the drain hole in my boat

    i want to plug the drain hole in my boat. i rebuilt my boat a couple years ago. new stringers, deck and transom. i used sea cast for the transom. when i did that i put the brass tube in the hole and poured the seacast in. i now want to take the brass tube out and plug the hole and use a bildge...
  12. brian3127

    40el75c johnson

    Im trying to get a impeller (water pump rebuild kit). I called one place they told me they have to order it and it will cost about $75. Another place i called told me that my motor is a 1967 motor and they dont make the parts to rebuild it anymore. I always thought that the model number was 40(...
  13. brian3127

    logn to short shaft

    i have a 1975 40 hp johnson thats has an extension on it that i would like to take off. how much work does that involve. i dont want to make a jack plate.
  14. brian3127

    long shaft motor vs a short

    i have a long shaft motor on my boat and i think i could go with a short. the prop hangs way below the transom. would that make a difference. in how it performs in the water. maybe less stress on the transom. and if a shorter shaft motor would be better how hard its it to take the extention off...
  15. brian3127

    here is a nice project boat i found

    http://muskegon.craigslist.org/boa/1328432462.html looks like it could be fun. i dont have the money to get it. i thought you guys would like to see it.
  16. brian3127

    rebiuld kit for a 1975 johnson 40 hp

    long story i bought a rebiuld kit. it has little discs that i see that are on the carburator how do i get those out. the bigger disc is on the top of the carb and is covering the 4 holes past the throttle plate and the little one i have no clue what that is covering. the reason im asking is...
  17. brian3127

    primerbulb

    i was running my boat in a barrel today and at idle it started to spit and sputter so i quick went back to the primmer bulb and squeezed it i was able to squeezeit about half way down. it didt really help the motor run better but i was able to squeeze it half way and i did that acoulpe times...
  18. brian3127

    40 johnson not running right

    i have a 1975 40 johnson. it will start up and then act liike it is not running on both cylinders all the time. when it misses the motor shakes and shoots water out forceably of where it is supposed to come out (i cant remember what it is called) and then striaghtens up then it does it again...
  19. brian3127

    1975 40 johnson

    it will run for about 10 second at a good idle then it spits and sputters and stalls out i have tried adjusting the low speed and that doesnt help.
  20. brian3127

    1975 40hp is sluggish

    took the boat out for the first time this year after rewiring the motor and putting new coils on it. from the hole shot it was sluggish and it didnt seem to run very fast. is there any adjustment that have to be made when new coils get put on the motor. by the way the motor ran smooth at low idle.
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