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  1. R

    New engine and new out drive with different gear ratio need prop help

    So old set up was high hour carbureted 5.0 and alpha 1 out drive with 1.62 gears. The new set up is new 350 mag mpi and a new alpha 1 with suggested 1.47 gears.. So i put the old prop on the new setup with is a 4 blade stainless 14.25'' and 17pitch During a shake down run on Sunday my top...
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    brand new 350 mag mpi getting hot at idle

    Ok guys i will try to explain from the beginning. Lost the 5.0 last Sept 30 mile off of Fort Bragg tuna fishing. manifolds decided to rust through. Always fan very well for a 2000 hour saltwater engine In April we bought a new bobtail 350 mag mpi..I installed it myself, ,also went with a full...
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    hot wire my 85' 90hp

    Hey guys i have searched but i cant find the answer im looking for. This is a motor i am looking to sell but i would like to get it running on my stand to prove that it runs. I have fuel to the motor water to the ears but the wireing is getting to me, what do i need to have power to to get it...
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    buy my mercury it "runs good"

    This motor a 2002 75hp 4 stroke has very "low" hours on it i bought it with a bad fuel pump and in very bad cosmetic condition. After waiting 5 week for a fuel pump i went ahead and tried to start it up. It fired right up but had a real bad knock in the lower end, i pulled the lower end off and...
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    Where to start ???

    Here is what i have a, 1990 17.5' spectrum deep v alum fishing boat. The boat has a 1300 lb max and with the new heavy 4 stroke,gear, 2 kids + wife i will be knocking on that door.I am putting a 2002 mercury 75hp 4 stroke. I got the motor from a house boat rental buissnes. So the motor was not...
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