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New to me 1975 25hp Johnson
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<blockquote data-quote="jonmac3569" data-source="post: 240174" data-attributes="member: 6462"><p>bbguy,</p><p></p><p>I have the exact same motor. You can see my thread in my signature. I have went through several issues in the thread but a few more that are not in the thread so let me know if you have any issues. I don't know everything about the motor but there is a fair chance I have toyed around with it. About the only things I haven't messed with are the cylinders and and lower unit.</p><p></p><p>One thing that made a big difference in mine was changing the J4C plugs to J6C, hotter plug and ran much better. (thanks to a suggestion on this site) I had a thermostat that was failed open so it was running cold. Changed that and the plugs at the same time and running great now.</p></blockquote><p></p>
[QUOTE="jonmac3569, post: 240174, member: 6462"] bbguy, I have the exact same motor. You can see my thread in my signature. I have went through several issues in the thread but a few more that are not in the thread so let me know if you have any issues. I don't know everything about the motor but there is a fair chance I have toyed around with it. About the only things I haven't messed with are the cylinders and and lower unit. One thing that made a big difference in mine was changing the J4C plugs to J6C, hotter plug and ran much better. (thanks to a suggestion on this site) I had a thermostat that was failed open so it was running cold. Changed that and the plugs at the same time and running great now. [/QUOTE]
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New to me 1975 25hp Johnson
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