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It is currently Tue Dec 23, 2025 11:42 am
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[ 7 posts ] |
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jordie1792
MMT Member
Joined: Sun Oct 05, 2014 4:32 pm Posts: 21
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 20 hp Honda Lt help
Just got a 20 hp LT and ive got it on a 15 42 semi v sea ark welded. Has a 21" transom. What speeds should I be seeing I'm only gettin 13 mph in deep water
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| Sun Oct 05, 2014 4:47 pm |
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SwampDonkey1
MMT F.E.
Joined: Tue Mar 08, 2011 10:09 pm Posts: 923 Location: North Central KS
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 Re: 20 hp Honda Lt help
The transom height and the boat itself are most likely killin your speed (unless its a long shaft longtail (84" shaft vs 72")) an ideal transom height is 16" and the boat should be a true flat... another thing to look into is prop wear... Get ya a tiny tach and install it to monitor RPMs, knowing the RPMs you turn in the water is going to help to diagnose some of the issues so you can get the most out of your longtail... Other than that welcome to MMT!
_________________ 1436 Lowe -Workin for the man, Huntin when I can...-
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| Mon Oct 06, 2014 9:21 am |
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_Boomhauer_
MMT Member
Joined: Tue Oct 07, 2014 1:56 pm Posts: 22 Location: Arlington.
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 Re: 20 hp Honda Lt help
Man my dang ol go devil gets about 17 mile per dang ol hour man on a dang ol 1442 man.
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| Tue Oct 07, 2014 2:15 pm |
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jordie1792
MMT Member
Joined: Sun Oct 05, 2014 4:32 pm Posts: 21
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 Re: 20 hp Honda Lt help
Thanks and what rpms should I be running?
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| Tue Oct 07, 2014 2:32 pm |
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jordie1792
MMT Member
Joined: Sun Oct 05, 2014 4:32 pm Posts: 21
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 Re: 20 hp Honda Lt help
And what size prop? 9x5? I'm New to all of this
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| Tue Oct 07, 2014 2:33 pm |
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_Boomhauer_
MMT Member
Joined: Tue Oct 07, 2014 1:56 pm Posts: 22 Location: Arlington.
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 Re: 20 hp Honda Lt help
Dang ol backwater 9x5 would be a ol good way to dang ol go man.
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| Tue Oct 07, 2014 2:50 pm |
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SwampDonkey1
MMT F.E.
Joined: Tue Mar 08, 2011 10:09 pm Posts: 923 Location: North Central KS
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 Re: 20 hp Honda Lt help
3600-3800 RPMs in the water
_________________ 1436 Lowe -Workin for the man, Huntin when I can...-
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| Tue Oct 07, 2014 3:16 pm |
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