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    Any room for improving top speed merc i6 on a 20ft bass boat

    I had a 200hp 83 mercury but it blew up i found the 88 inline six for a cheap replacement I have a 18 pitch turbo prop on it now running 43mph at wot on the gps at 5200rpm the boat is a 1983 20' bayon bass boat think there is any room for improvement ???
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    1987 Yamaha 150 cranks slow

    I have a 1987 yamaha 150 that will not turn over very fast.I now have removed the plugs and have tried to crank it over at first it cranks over fast like it should then it will slow down to the point where it does not turn over at all.I put a socket on the flywheel main nut and it turns over...
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    140hp johnson 1 cylinder no spark

    Hi Guys,<br /> I could use some help I have a 1978 johnson 140 that runs pretty well some of the time.Last week went out fishing going along at about 50mph when I lose power top speeed drops down to around 35mph.This problem has been has been going on for about six months off and on but it has...
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    1978 johnson 140 overheating problem

    I have a 1978 Johnson 140hp that is overheating when at trolling speed.I see a very solid stream of water coming out the pee hole while trolling.So I dismissed it being the impeller.I took the thermostats out yesterday and tested them in some hot water and they opened fine.Should I replace the...
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    1978 johnson getting hot

    I have a 1978 Johnson 140hp that is getting hot.This just happened last week for the first time.I was trolling and into it for about 3 minutes when it happened.The impeller seemed to be putting out a good stream of water out the pee hole.I pulled off the thermostats out today and put them in hot...
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    115hp tilt question/ 115hp coil question

    I have a 1969 johnson 115 with out tilt I can buy the center section with tilt off a 1975 evinrude 115 can tilt off this motor work with 1969 johnson???Also will the coils off the 1975 evinrude 115 fit a 1975 evinrude 135.Thanks you guys are great.
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    1978 johnson 140hp

    I have a 1978 johnson 140hp lower unit seems to shift into gear but the motor does not push the boat very well.The best way I can discribe it would be like a clutch in a car slipping.At low rpm's the boat goes.<br /> Next question I have a 1975 evinrude 115 with a blown powerhead will the 140hp...
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    1979 115hp Evinrude no spark

    Please help guys I just bought this motor the person I bought it from said it runs great.The motor has sat for a few months it cranks over fine but no spark at plugs. :confused:
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