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Increase the hp of an 89 model 8hp Mercury
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<blockquote data-quote="JMichael" data-source="post: 286524" data-attributes="member: 7544"><p>Looking at the parts catalog, it appears that the 6hp, 8hp, and 9.9 have the same piston/crank and most other parts. There are multiple carbs listed but all of them have four different jet sizes listed for the same jet, so I'm assuming that the jet size is part of or possibly the only change needed to control the hp rating of the engine. Can anyone out there with personal experience shed some light on this one. As mentioned in the title, it's a 1989 8hp mercury 2 stroke.</p></blockquote><p></p>
[QUOTE="JMichael, post: 286524, member: 7544"] Looking at the parts catalog, it appears that the 6hp, 8hp, and 9.9 have the same piston/crank and most other parts. There are multiple carbs listed but all of them have four different jet sizes listed for the same jet, so I'm assuming that the jet size is part of or possibly the only change needed to control the hp rating of the engine. Can anyone out there with personal experience shed some light on this one. As mentioned in the title, it's a 1989 8hp mercury 2 stroke. [/QUOTE]
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Increase the hp of an 89 model 8hp Mercury
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