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    Drive Shaft Bushing

    I finally got the lower unit off my 1991 150 yamaha. The drive shaft was seized to the shift shaft as stated in my previous posts. Now the questions is the rubber seal and bushing. The rubber seal is beat up pretty bad and the bushing is marred. I don't see the seal on any part lists. I see...
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    Maybe Siezed Motor Hopefully Not

    I have used you guys in the past and have always appreciated your help. I have twin 1991 Yamaha 150 that I am unwinterizing Everything OK with Port Motor. Starboard motor would not turn over. Batteries are fine. I pulled the plugs and can barely turn the fly wheel. The plugs looked fine...
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    Yamaha Dual Controls Problem

    I have twin 1991 150 yamaha's. I normally cruise at 3,600 rpm and both controls are at the same foward postion. My last few trips I noticed that I have to move the starboard control about 3/4 inch further forward in order to get to 3,600 rpm. Since this started, once in a while this motor rpm...
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    Water Pump

    I have twin 1991 150 yamaha's. Today I noticed that the starboard motor has alot of airbubbles coming up from the lower unit out of the vents behind the pump and the telltale does not have as strong a stream as the port motor. Just changed Water pumps, T-stats, pressure valves. Am I somehow...
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    Leaking Power Trim and Tilt

    I have a 1991 150 yamaha that slowly leaks off after about a day or two in the full up position. I replaced the caps and seals on the two rams. Any advice on getting the tilt piston upper pin free its a rusted mess? Also now I see a leak coming from the left ram oring/trim dust seal. This...
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    Yamaha Oil Buzzer (Round 2) Rodbolt

    Hello,<br /><br />This question is for Rodbolt,<br /><br />You helped me out a few weeks ago when I was having problems with the Buzzer Alarming out. post "YAMAHA OIL BUZZER"4-19-05 I thought the problem was fixed when I replaced a bad ground wire that was connected to the trim sensor. I...
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    Yamaha oil buzzer

    Hello,<br /><br />I have twin 1991 yamaha 150's the starboard motor is having a problem with the oil buzzer. All three lights on the tach are blinking and I have a steady buzzzzz. I switched sensors from the remote tank from the port motor and no change. I noticed when I disconnected the...
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    yamaha oil injection

    Hello,<br /><br />I have a 1991 Yamaha 150hp. I am having trouble with the oil injection. It seems like when the boat sits for a long period the oil tank on the engine overflows. When I use the boat regularly it doen't happen. <br /><br />Any help would be apprecitated.
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