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    2006 Mercury 90HP 4stroke some issues

    Hi guys, after few Yamaha's I got first Mercury outboard, 300 hours on it, nice runner but still I noticed few issues 1. Trim goes down on its own, for example...engine trimmed up and after hour it goes down 2. it has some bog around 2200 rpm, after that pulls like train, on 2000rpm runs...
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    Yamaha F20BEL few questions

    Hi guys I have 2009 Yamaha F20 BEL, around 150 hours on it, regulary serviced. This is my first four stroke engine and I have few questions 1. It is jumpy when running, moves left right, not smooth, vibrates 2. Its loud especialy at high revs, very loud 3. Around 2000 rpms makes little whine...
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    1991 40HEO problem

    Hi there I have 1991 Yamaha 40HP autolube HEO..runs nice but recently when at full throttle makes some weird noise you can hear that in my video I recorded yesterday thanks https://www.youtube.com/watch?v=llEtrgBFnac
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    1992 Yamaha 40 HEO - cricket sound above 2500 rpm

    Hi there, I bought second hand Yamaha 40 HEO from 1992, 3 cylinder It starts lovely, but recently above 2500 rpm shows some kind of ''kr'' krk'' sound, not loud but is there otherwise it runs fine, I use original Yamalube and sparks replaced month ago this is my boat running...
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    Yamaha 40 2 stroke questions?

    Hi there, I have Yamaha 40HP 2 stroke outboard and have two questions about it: first how to determine what year of production is engine? It says on stamp...40 HEO second, my temp gauge doesn't work...it's brand new unit and I think I connected wires properly but it doesn't move the temp needle...
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