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  1. M

    73 evinrude 135 hp not taking in water to cool

    Finally got the 73 evinrude 135 hp engine overhauled. I have to break it in, but I can only run it for 5 minutes before its temp gets way too hot. The water is not cycling through. I made sure the key was good, impeller is new, made sure the plastic sleeves to the tubes were connected in...
  2. M

    need help with information on 1973 evinrude 135 hp outboard

    I am interested in trading my 1973 evinrude 135 hp motor with a guy. What specs do i need to know. Length of shaft? What is mine? 20 " He has a 1986 evinrude 150 hp for sale. I would pay some money with my motor. Would this be a good trade? What do I need to know, to be certain it will...
  3. M

    1973 Evinrude 135 hp overhauled and bogging down

    Hello, So my engine (135 hp evinrude) is finally together and I have been breaking it in. I have been running it in a tank around 1500 rpm's. 9 gallons of gas so far. The engine will run fine and then make a poof/pop sound and bogg down to 1000 rpm's or lower and sometimes quits right after...
  4. M

    tell-tale placement

    Hello all, I am planning on following the guidlines to putting a tell tale into a 1973 evinrude 135 hp. After reading through the post-posted on here by iwombat (which is a really good post) I am confused about the spot to drill into the crankcase. There is a good spot on the upper part of...
  5. M

    carb linkage

    I am pretty sure I lost the linkage assembly or piece. The one that connects one carb to another (looks like a wire bent in a few places). Boat motor is 1973 evinrude 135 hp. I tried to find one on evinrude, but they do not sell it. Does anyone have any good suggestions to where I could buy...
  6. M

    by-pass covers

    I removed the four by-pass covers on the crankcase while disassembling a 1973 evinrude 135 hp. 3 of them look the same 1 is different. I do not remember what ones came from where. Does it matter if I put them back in the wrong spot. Could anyone give me any tips to figure out how to put them...
  7. M

    piston

    So I just found out I have a crack in a new piston. I am looking to replace it right away. I wanted to get the motor back together this weekend. It is for a 1973 evinrude 135 h.p. I am located in WI. Is there any evinrude companies close to this area? Could anyone tell me the names of good...
  8. M

    Thermo Switch Lead

    I have noticed that I need a new thermo switch lead for a 1973 evinrude 135 hp. Its a little round plastic indicator on the top by the water passage cover. Does anyone know where I can get one of these? I know that I can get one from evinrude.com, but its 68.00 dollars. I was curious if...
  9. M

    oil color in lower unit

    I drained the oil and removed the lower unit on a 1973 evinrude 135 hp. The oil draining at first was thick and slightly milky looking. The rest draining out was not as thick and light brown. I changed the oil out 2 months ago, but had to do it again do to rebuild. Is this normal? If not...
  10. M

    what is the best way to check waterpump

    I had an overheating problem with the top 2 cylinders. I want to make sure that water is circulating through the block and getting to the top cylinders. The motor is a 1973 evinrude 135 hp. To my knowledge so far, there is no pee-hole by the exhaust and the water exits down by the prop. If...
  11. M

    cylinder wall and pistons

    Pretty inexperienced, but learning a lot quick. I just got done taking apart the motor and noticed that the top two pistons in the block had been scratched up a little on the sides. There was no damage to the rings. The top right piston or cylinder #1's piston top is somewhat melted or...
  12. M

    what type of oil for the lower unit

    Hello, I am not sure if the lower unit takes a special oil since it is so old. It is a 1973 evinrude 135 hp outboard. Is there a certain type this lower unit needs different from todays standard oil in lower units? thanks
  13. M

    similar parts??

    Hello I need a little help, Would a 1973 evinrude 135 hp be compatible to a 1975 evinrude 135 hp to use for parts? (pistons, rods, etc.) thanks
  14. M

    1973 evinrude 135 hp needs rebuild in #1 cylinder

    Hello all, I am new to the forum and boating. I have been fixing up an old 1973 signa with a 73 evinrude 135 hp. I took it in to a mechanic to check out what needed work. After pulling out the spark plugs he found that in the #1 cylinder on the right side the spark plug was melted or burnt...
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