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    Spent $300 and no fix! c115 Powertrim

    OK guys! Who can help me. 1991 Yamaha C115. New trim switch in handle, down relay, and starter relay. Now the up does not work. Started with both up and down clicking. No motor movement. But, I could cross over relays with screwdriver and make engine move. So, now where do I look. Nothing is...
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    1992 C115 Yamaha Power Trim Click & Lost Power to Key switch/trim

    My problem started with power trim clicking. I crossed the up with screw driver and it works. Tried the down and got sparks. But, when pushing down button, the 3rd selnoid clicks. So, I took hires off. The red wire hit the starter and sent sparks flying. Now I have not power to key switch or...
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    Prop Slip

    I am running at 13.5 x 19 ss prop on<br />a C115hp. Pusing an 18.6 Proline CC.<br /><br />The prop does not grab or push boat unless<br />trimmed way in.<br />Once up, from 4,000 rpms to 5,000 rpms, no<br />noticeable speed pick up. Just noise and gas<br />burn.<br /><br />If I turn a half turn...
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    PSI @ Zero. Peeping out front of lower unit?

    I just bought the boat. It has 1991 c115.<br />Changed impeller. Everything seem to line and<br />put back right. Peep stream GREAT. Increase and decreases with RPM on hose.<br /><br />But, PSI gauge does not move.<br />And there is water pouring out of peep hole in<br />front of the lower unit...
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    Tube in front of lower unit? 115 hp.

    Ok. I took both lower units off. 115hp 91 and 84 years.<br /><br />One(C115 91) has a tube that feeds into hoses going into <br />the boat. What is that? I thought speedo but there is a wheel speedo on the boat.Is it a temp gauge?<br /><br />The other one(1984)has a plastic plug in it.<br /><br...
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    What is difference between "EK" & "EJ" lower unit for 11

    I have 1984 and 1991 115 Yamaha's.<br />One is oil injection and other is not.<br />I want to swap lower units but the part numbers<br />are different.<br /><br />The lower unit case numbers are different.<br />61U-45300-13-EK FOR 1984<br />61U-45300-13-EJ FOR 1991<br /><br />Can I swap? What is...
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    115 Lower Unit Crack! Swap with older 115?

    I have a 1992 115 that has a small hair line crack in the lower unit nose cone housing. It is on the very back edge by the prop. Can this be fixed anyway? I have been told it can be arch welded and it will last forever. What causes these cracks? I have an 84 115-Can I swap lower units on the two...
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    Pro150 V- Oil pump keeps pumping

    have an early 80 pro150v. the oil pump was not working. Then when I turned on light switch it started pumping and would not stop. Overflowing. Fixed the light issue. Now when I turn the key to on, it starts hmmmmiinnnggg-pumping and won't stop. Overflowing. And is the cap on oil tank suppose to...
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    Yamaha 115 hp

    Yamaha 115 hp is breaking down and missing above 4000 rpms. It is an 1984 model. VPro. Problem just started out of the blue.
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    1984 Yamaha 115 bangs and misses @4000rpms

    1984 Yamaha 115 bangs and misses @4000rpms. Motor runs great until 4000 rpms. Then starts making a metal to metal bang/clang sounds and breaks down. Missing. Like it has no oil or fuel or electrical short. But, I have no idea. Motor just started doing it and has never had a problem. Only thing I...
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