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  1. C

    Yamaha Hydraulic circuit

    Can any one help with a hydraulic circuit diamgram for a '87 140HP tilt trim hydraulic system<br /><br />Many thanks
  2. C

    Yamaha Tilt / Trim Hydaulics

    I have a problem with a '87 Yamaha tilt trim system. The motor settles to the trim stops in about 20-30 seconds and will not maintain trim when in use. The rams piston seals are OK, the bypass valve is closed and fitted with new seals, the psv seems OK, the shuttle valve is fitted with new...
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