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    Prop Size

    I have a johnson 115 on a 14' Swiftcraft Stilletto. Unfortunately I hit something in the bay and my prop is cactus. I've removed the prop, and the model numbers are illegible. <br />All I can make out is 1? 1/? X 1?<br /><br />My local boat dealer won't allow me to buy a prop and test it to...
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    Regulator?

    To the right hand side of the rectifier in a 1970 Johnson 115 is a rectangular fitting with 6-7 wires coming out of it. Is this the regulator? I seem to recall the guy at the marine shop saying it was a clipper switch or something similar.
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    Overcharging?

    I have a Johnson 115 (1970 model) which may be overcharging the battery. <br /><br />Using a multimeter I took the following readings from the battery:<br /><br />Motor off: 12.6<br />Motor on (idle) 12.9 increasing to 14<br />Mid range 15 to 16<br />WOT 16.8 to...
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    Champion Spark Plugs

    Are L77JC4 & QL77JC4 the correct Champion spark plugs for a Johnson 115 (1970 model)?<br /><br />If so, what's the difference between them?
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    Ski Prop

    I have a 1970 Johnson 115 on a 14FT Swiftcraft Stiletto. The boat is used primarily for skiing. Can anyone tell me what the best size prop to use would be.<br /><br />Also, I've noticed that the spark plugs currently being used are NGK B9HS, the manufacturer recommends B7HS. Apparently the...
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    Johnson 115 fuel pump problems?

    I have a Johnson 115 V4 (about 20 yr old). The problem is that it refuses to start or go into gear when I completely lower the motor using the tilt. If I keep the motor raised (10 degrees or more) it will start first time, and go into gear when selected. Once it's running and in gear I can...
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