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    Can I run my 25 hp johnson without the thermostat?

    Hey guys, I have a 1977 johnson 25 hp electric start. Just took it to the local boat guy because it was getting hot. He told me the thermo was stuck and not allowing the engine to cool, its pumping good, but the water isn't getting where it needs to go. He removed it but didn't have one in...
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    What am I getting myself into?

    My father in law is offering me a early 80's 25 hp evinrude. I have tested this motor twice and noticed the two following: 1. The motor starts easily, but past half throttle or so, it never increases in RPM's. Its not stuttering, or sluggish, just as though it won't run higher rpms at all...
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    1977 Johnson 25 hp still slipping...clutch dog looks NEW. HELP!

    I posted up about this motor (77 johnson 25 hp), "slipping" out of gear. When it first started it would barely "pop or bump" for literally a split second, and the shifter would not come out of gear. However, if you hold the shifter it did it LESS, but still would try to slip. We changed the...
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    77 johnson 25 hp still having problems?

    Ok thanks to this forum I have the right spark plugs in, and replaced a faulty prop with a new one.<br /><br />Took it out last night and up on plane, every few seconds it sounded like I "hit" something, but I was not hitting anything, as I was in 20 feet of water?<br /><br />It was very similar...
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    Spark Plugs for 1977 Johnson?

    Can someone point me in the right direction on spark plugs for my 1977 Johnson 25 hp?<br /><br />I got the "slipping" issue fixed and it was indeed a bad prop.<br /><br />The plugs that are in it now are splitfire, never seen that in an outboard before, but they definitely need replaced.<br...
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    '77 Johnson 25 hp "slipping"

    Hello, this is my first post and let me say, it is a great forum, wish I knew about it years ago.<br /><br />I aquired a 1977 Johnson 25 hp (tiller)that I hoped to use as a my new duck motor. The guy who had it before me said it was a great motor, but had a problem "slipping out of gear"<br...
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