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    70 HP Yamaha - overheating

    I have a 1986 70 HP Yamaha that I think is overheating. When run at idle for a while, the alarm sounds continuously. If I run a litle faster (maybe 10-12 MPH) while underway for a couple minutes the alarm will stop and the engine runs fine at high speeds. Water is continuously coming out of...
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    1987 70 HP Yamaha, oil injection

    I bought a used 70 HP Yamaha 2 cycle oil injected outboard. It doesn't seem to be using much oil from the oil injection tank mounted under the engine cover.<br /><br />I've used about (4-5) six gallon tanks of gas and the level in the oil tank dropped to only about 75% full. After little oil...
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    1987 70 HP Yamaha, power tilt/trim

    I just purchased a 1987 15" Boston Whaler Super Sport Limited, with a 1987 70 HP Yamaha, 2 stroke oil injected outboard.<br /><br />Motor runs great, but the power tilt & trim won't hold the motor where you set it. If I set the trim while underway, after 2-3 minutes the motor is all the way in...
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    1970 Johnson 9 1/2 HP - No Spark

    I have a 1970 Johnson 9 1/2 HP outboard and can't get a spark from either cylinder. The points look good. I’ve tried disconnecting the stop switch and also jumpering out the stop switch wires, but no luck. It seams to me the only common circuit is the stop switch, but I’m not sure if this...
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    1990 120 HP Johnson V4

    I have a 1990 120 HP Johnosn outboard on an 18' Boston Whaler Outrage. It appears one of the cylinders doesn't fire until the engine has been running for at least 10 minutes. After the motor runs the missing cylinder kick in and the motor runs fine. This happens well after the high idle warm...
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