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  1. R

    motor raises in reverse at idle

    i have a 1977 402 mercury. i installed an impeller and reverse will not lock in. it originaly would not sit all the wat down on the transome. i took reverse cam off and moved it on the shaft 1/4 of a turn. it will now sit on transome but will not lock in reverse. how about another 1/4 turn...
  2. R

    help on reverse lock cam

    i just replaced water pump impeller on my 76 model 402/ 40 hp mercury. i have a manuel that says for older models you line diagnol to the mount screws. on the newer model it says to align high part of cam to middle nut on lu. right now i am stck in foward gear when i crank up with my shifter...
  3. R

    help finding part oem

    i have got a part on a 76 402/40 hp mercury that is made of plastic. it is called secondary throttle pickup. when you push throttle lever foward this piece turns and opens up throttle butterfly. it has a screw with a rubber end on it and a nut that you lock it with. the plastic is broken where...
  4. R

    crisis with stator

    i have a 1976 402/40 engine i just bought and im having trouble.i took the hood off and all the wires from the stator were corroded and rotten. i boght a new stator for 160.00. i got it home and there is a extra blue wire on yhe new one. sierra part no. was 18-5856 the part is made by cdi rapair...
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