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Old 05-21-2015, 02:22 PM   #1
Lt. JG
Join Date: Apr 2015
Posts: 25
Exclamation Boat trailer sways/fishtails over 50mph

Hello, I'm just took my '98 Maxum boat (1900 SRL) on the freeway for the first time since purchasing last month from a dealer, and it sways or fishtails pretty bad at anything over 50mph.

I'm pretty sure tongue weight is the problem because i can lift it with one hand (maybe 15lbs) when I believe it should be closer to 150lbs.

Any suggestions? I hear some people move the trailer axles back (though they appear to be welded) or move the boat forward (though I don't see the required space for pulley assembly).


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Old 05-21-2015, 06:34 PM   #2
mmwjr's Avatar
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 8,370

Tongue weight should be 15% of overall trailered weight.

Either move bow stop forward to shift boat forward or move axel back.

This may not require as much movement as you think.

Use a bathroom scale under the tongue jack to measure the weight.

1997 2400 SCR
5.7 Vortec / Bravo 2

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Old 05-22-2015, 01:27 PM   #3
Lt. JG
Join Date: Apr 2015
Location: Seattle, WA
Posts: 36

You are correct, your tongue weight is very light. Like Mike said, you can use a bathroom scale. If you are OCD you can get your rig weighted to know exactly were your tongue weight should be.
Phil, Vicky, Ashleigh & Sydney
1998 3055

Life is short, boats are cool.
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Old 05-23-2015, 03:05 AM   #4
Join Date: Apr 2015
Location: Australia
Posts: 8

Your dealer needs a kick in the ass. You could have lost it down the road!
pthiemann is offline   Reply With Quote

fishtails, sways, trailer

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