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98 Nitro 640lx #14551113 11/30/22 09:09 PM
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Testy49 Offline OP
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Does anyone have a 98 Nitro 640lx with a 90hp 4 stroke engine? My current engine is a 75hp Force 2 stroke. The Force weighs 205lbs and the new engine weighs 359. I am just trying to figure out if that 150lb difference is or should be a concern. The maximum hp for this boat is 90hp.

Re: 98 Nitro 640lx [Re: Testy49] #14551251 11/30/22 10:59 PM
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Pat Goff Online Content
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Step on the transom when the boat's in the water. You'll know quick enough.


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Seadrift TX
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Re: 98 Nitro 640lx [Re: Testy49] #14551358 12/01/22 12:36 AM
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Testy49 Offline OP
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Makes sense.

Re: 98 Nitro 640lx [Re: Testy49] #14553475 12/02/22 11:59 PM
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SteezMacQueen Online Happy
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I had a 640 with the 75 many years ago. Good solid boat. It was a 45 mph boat, but it was built like a tank. They would probably not benefit from 15 more hp vs all the added weight.


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