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My jon boat setup tell me what is wrong
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<blockquote data-quote="shawnfish" data-source="post: 327753" data-attributes="member: 4468"><p>when the engineers design outboards(and im not sure but probably any engine) they start with the spark plug and design everything around that plug wich in 1980 were champions. I ran NGK's in my 80 Johnson 25hp for a while because the parts store didn't have my plugs in stock and when I put the champions in I could notice how much better the motor idled and ran. if your max operating range is 5500 to 6500 rpm's</p><p>and your running at 55-5600 rpm's at those speeds you are making your motor work a lot harder than it should have to and is putting more wear on the engine than normal. with a 55-6500 operating range your motor should be putting out about 1000 more rpm's for it to run like it was designed to run. if your wide open at 5600 rpm,s you better change to a prop with less pitch that will let you run right around 6500 rpm's or that motor will not last long putting all that strain on your powerhead,shaft,gears etc.....</p></blockquote><p></p>
[QUOTE="shawnfish, post: 327753, member: 4468"] when the engineers design outboards(and im not sure but probably any engine) they start with the spark plug and design everything around that plug wich in 1980 were champions. I ran NGK's in my 80 Johnson 25hp for a while because the parts store didn't have my plugs in stock and when I put the champions in I could notice how much better the motor idled and ran. if your max operating range is 5500 to 6500 rpm's and your running at 55-5600 rpm's at those speeds you are making your motor work a lot harder than it should have to and is putting more wear on the engine than normal. with a 55-6500 operating range your motor should be putting out about 1000 more rpm's for it to run like it was designed to run. if your wide open at 5600 rpm,s you better change to a prop with less pitch that will let you run right around 6500 rpm's or that motor will not last long putting all that strain on your powerhead,shaft,gears etc..... [/QUOTE]
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My jon boat setup tell me what is wrong
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