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    prop selection

    87 115hp yamaha on a 16 ft searay ss prop 13 x21 my wot was 4800 just bought aluminum 13 x 19 what do you think my wot will be ?and will I slow down or maybe a little faster motor should run between 4500 and 5500 for wot does that mean I should be at 5500 ?
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    whats it worth

    thinking on getting a newer bigger motor just wonderin what you guys think mine is worth 1987 yamaha 115 hp with all gauges remote
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    Advance timing for my motor

    ok yamaha manual says 23 solec says 25 guy on here told me 28 so can any one that actualy noes what is the timing suposed to be ? 115 yamaha 87
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    solec manual makes no sense

    Can some one tell me some spec from a yamaha manual I have a 115 yamaha 1987 ETLH I have some photo copys of the time specs and stuff from the yamaha maual. Problem is it refers to like 3 different models a b and cv well I have no idea what my motor is except for 115etlh. According...
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    how acuate are these spedo sensors

    I dont have a gps so I was just wondering how close they are ? yamaha gauges yamaha gauges on 115 yammy 115 yammy analog gauge anolouge gauge
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    oil pump timing

    115 yamaha 87 oil injection was unhooked when I bought it. Well I plugged it back in and it works fine. I noticed that the 4 nipples on the pump produce oil at a different time 1 then 2 then 3and4 at the same time. I guess what im asking is do I have to hook this up so that certain...
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    adding another fuel filter from tank

    Id like to mount another fuel filter inline with the existing one. I have a 115 yamaha 87 and like just about every one else on here I have dirt in the carbs giving me a bog. Ques is there should be enough suction from the fuel pump to give me enough flow right ?
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    bogy at low throttle

    my 1987 yamaha 115 starts fine but idle is some times right on at 700 other times its 200 any ways I give it about quarter and it seems like it is only runing on 2 or 3 cylinders ill touch the choke and it picks up and is fine. I ve replaced the plugs it made a small difference. I have...
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    speedo sensor for 115 yamaha

    wheres the sensor for the speedo ? though the boat was goin slower but im suspecting that the speedo is off. today it stuck at 15 mph any one else have a similar problem with there motor?
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    66 Johnson 40 hp jumping out of gear

    motor has electric shift works fine at low speed but once you put the power on it jumps in neutral. I ve had the leg of gears look fine and ive replaced the oil. Im assuming I have a bad solonoide ? any one know where I can get one ?
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    need help with Gel coat

    My boats has a terrible finish from oxidation. Id like to refinish it but dont no alot about gel coat. Can I spray it on or roll it and what type of finish will it give me ? Id like to have a good shine will I have to buff it afterwards ?
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    pre mix for 115 hp yamaha 87

    oil injection has been disconected. what should I be mixing the oil gas ratio 100:1 ? I ve been mixing 50:1 to be safe but fouls plugs
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    need timing specs for an 87 115 etlh

    Does any one out there have the timing specs for my motor. I just bought the boat form my buddy and I suspect he's adjusting the timing wrong. last year WOT was 5400 now with the two of us in it same blade WOT is 4800 and I cant get the speed out of it that he was running last year.
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