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1980's Johnson/Evinrude 20/25hp conversion to 30hp with pics
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<blockquote data-quote="dkonrai" data-source="post: 341318" data-attributes="member: 9947"><p>i had a older 72 johnson 20 hp. i stuck a 25 hp carb on it and it flew. it was on a 14 foot duroboat and at wot it was scary fast. sold it to a guy who is still running the motor. i didnt have a gps, but, it planed in seconds but would chine walk at wot.</p><p></p><p>https://www.youtube.com/watch?v=E5_RQaHvx4Q</p><p></p><p>i now have a 80 johnson 25, that needed a lot of work. i got it back together and am going to swap out the intake and carb (if i can find a set cheap) . motor seems to have way more power than the older 72 but still has the little split case lower unit. im thinking the lower should hold up as the 50's motors (30hp) had the same style lowers. </p><p></p><p>here she is running. i have since installed a lanyard style kill switch (missing in the vid, thats the loose wire) </p><p></p><p>https://www.youtube.com/watch?v=sySIsymJeSQ</p><p></p><p>thanks johny for inspiring us with your great thread,</p><p>dino</p></blockquote><p></p>
[QUOTE="dkonrai, post: 341318, member: 9947"] i had a older 72 johnson 20 hp. i stuck a 25 hp carb on it and it flew. it was on a 14 foot duroboat and at wot it was scary fast. sold it to a guy who is still running the motor. i didnt have a gps, but, it planed in seconds but would chine walk at wot. https://www.youtube.com/watch?v=E5_RQaHvx4Q i now have a 80 johnson 25, that needed a lot of work. i got it back together and am going to swap out the intake and carb (if i can find a set cheap) . motor seems to have way more power than the older 72 but still has the little split case lower unit. im thinking the lower should hold up as the 50's motors (30hp) had the same style lowers. here she is running. i have since installed a lanyard style kill switch (missing in the vid, thats the loose wire) https://www.youtube.com/watch?v=sySIsymJeSQ thanks johny for inspiring us with your great thread, dino [/QUOTE]
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1980's Johnson/Evinrude 20/25hp conversion to 30hp with pics
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