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    effects of pitch changing

    Here is my situation. I have an 85 merc 25 hp with 13 pitch that spun the rubber out of the prop the other day. I ordered a new one, had 3 choices but accepted the only one they had in stock which was turns out to be a 14.5 pitch. What can i expect for power difference between these two props...
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    25 xd merc

    i have looked at the year charts but would like a confirmation about the year of my merc. serial number is A118727 it has a brown merc sticker on it and i believe it is a 1985 model. would someone kindly confirm my year. thanks
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    need help choosing prop for 9.9 johnson

    Looking for a little advice in choosing a new prop for my 9.9 johnson(2003). Currently i run a 9 1/2 x 10 that may have a little shaved off from grinding rocks in a low river. I am looking for more thrust to help push a heavy load such as 2 hunters, some moose meat and our gear. We use 14' boats...
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    prop choice for more thrust on 9.9 johnson

    Looking for a little advice in choosing a new prop for my 9.9 johnson. Currently i run a 9 1/2 x 10 that may have a little shaved off from grinding rocks in a low river. I am looking for more thrust to help push a heavy load such as 2 hunters, some moose meat and our gear. We use 14' boats and...
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    correct oil/fuel ratio in 40 hp engine

    Is is susposed to be 50:1 or 100:1 for a 40 hp engine I always thought 50:1 but recently seen a 15 hp that said 100:1 your knowledge would be appreciated.
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    Help identify year

    Hello, i was wondering if i could get some help in identifying the year of an outboard that i may purchase. Model C40MLHT SERIAL 381208 Thank you in advance.
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    Need model years

    Hello people, i got 3 merc outboards that i need to identify #1 SERIAL NUMBER 7196111 9.8hp<br />#2 SERIAL NUMBER 7138943 20hp<br />#3 SERIAL NUMBER 7132699 20hp<br /> thanks for the info
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