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    Best gas for outboard

    I have been thining of what is the best gas for my outboard. The tag says to use gas with 89 octane rating. Mixed at 50/1 Locally I can get 3 grades of fuel. Reg. 87 mid grade 89 premium 92 to 93. My question comes up from checking out the way fuels sell. The fast seller is 87. The next is the...
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    Will tachometer work??

    I am wanting to install a Teleflex Red International Series tachometer on my boat. I have a 140 HP Mercury. 1972 model. I saw a sticker on the motor that says Mercury quicksilver tachometers only. Went to Teleflex web site. Can't find out anything. Talked to a sells rep at a mailorder place. I...
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    Tachometer question on outboard

    I know that on a automotive engine that a tach must be set for a 4,6 or 8 cylinder engine. Is it the same on a 2 cycle? Changing for a 4 cylinder to a 6. Horsepower the same, but do I need to change tachometers?
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    Powerhead swap????

    I have a question that I can't find a answer in any books I have. I have a 1972 Chysler 130. This engine was only produced in 72 & 73 from what I can find out. Something happened and the #1 cylinder is trashed. What I am trying to find out is what other powerhead will bolt onto my lower unit? I...
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    Dead cylinder 130 Chrysler

    Having troubles with an early 70's model Chysler outboard. It is a 130 horse 72 model. The number 1 cylinder only has 25 pounds of compression. I pulled the head off. cylinder scored very bad and pistion is very loose in the cylinder. 2,3,&4 cylinders all have 129 to 132 pounds of compression...
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