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  1. M

    1973 23ft Seaport Cabin Cruiser

    i got a 1973 seaport cabin cruiser it has a V8 chevy engine that was out when i bought the boat. it is jet drive but nothing is hooked up. only thing in the boat was block everything was took off Heads/pipes/jet drive and all but i have it all. The hull is in great condition perfect floors and...
  2. M

    lower unit allen screw

    when i was draining my lower unit and was refilling it i took the allen screw out. i thought that was where it gets air from. i didnt know you filled it from the bottom. i looked in my book and it said the allen screw holds a bearing? do you think it messed anything up when i removed the allen...
  3. M

    Engine prop diffrence?

    if i was to change my old stock prop on my 1974 70 hp with the same pitch/diameter and all but to a stainless steel would it help my boat? i dont know what rpm my boat motor turns to find out which prop would be best. at full throttle my boat kinda bogs but if u pull up on the throttle about 1/2...
  4. M

    1974 70HP Evinrude

    I have a 1974 70HP Evinrude Model #70473-M and on my motor it says use spark plugs UL77V but in my repair manual it says for a 1974 70472-73 uses L77J4? The UL77V seems to foul out easy after about 10 times on the lake i gotta change them. Can i go with the L77J4 even though on my enigine it...
  5. M

    filling lower gear oil

    i have a 1974 70 hp evinrude and i drained all the old gfear oil out with the drain plug at bottom. i put plug back in and unscrewed the fill plugh and the air vent. when i try to fill it i can get it to go in. oil comes out the air screw hole and if i put it in when iu take bottle out of fill...
  6. M

    online store for parts?

    wheres the best and cheapest place to find about any part i need for my 1974 70 HP Evinrude on the internet? i go to my local dealer a carb rebuild kit is 16.95 a piece and 1 can of engine tuner is $7. whats a good site to order everything including fuel lines, spark plugs, oil, and other parts...
  7. M

    Oil Mixture 1974 70 HP Evinrude

    What oil / gas ratio do i need to use for a 1974 70 hp evinrude. I been useing 50:1 16 oz's oil to 6 gallons gas.
  8. M

    70HP Evinrude Wont crank

    I have a 1973 or 74 70 HP evinrude and it use to crank up fine choking it but now i cant get it to crank on its own. I can spray starter fluid in 1 cyclinder and it will fire right up. after its running it will idle fine. in operation it runs fine untill full throttle and it misses at full...
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