9.9HP or 10HP???

Biggems

Petty Officer 2nd Class
Joined
Aug 8, 2008
Messages
148
Just curious what the difference is between a 9.9 and a 10? It seems like the 9.9's are more popular and I see more of them. Why did they even make a 9.9? why not just get a 10? it's a tenth of a horsepower difference?!?!?! You don't see cars with 249.9HP......
 

capt sam

Master Chief Petty Officer
Joined
Jan 14, 2009
Messages
878
Re: 9.9HP or 10HP???

because alot of waterways have a 10hp or above restriction. And IIRC you have to register any boat over 14' with a 10hp motor but I could wrong on that.
 

kandil

Chief Petty Officer
Joined
Aug 8, 2008
Messages
567
Re: 9.9HP or 10HP???

Lots of small lakes have under 10HP restriction;)
 

Tacklewasher

Lieutenant Commander
Joined
Sep 18, 2002
Messages
1,588
Re: 9.9HP or 10HP???

Any boat with 10hp and over has to be registered. At least that's how it is in Canada and I'm pretty sure the US is the same.

9.9 and I don't need letters on my boat. 10hp and I do.

Or at least I should. I just need to convince the boat cops that my BF100 that is rated at 10hp has been de-tuned to 9.9 as my boat has no letters.

Any lakes I've seen with a hp restriction allow up to 10hp (7.5 Kw)
 

beerfilter

Petty Officer 1st Class
Joined
May 11, 2007
Messages
305
Re: 9.9HP or 10HP???

Regulations on boat registration , vary from state to state .
Here in Tennessee , all vessels/craft using mechanical propulsion , or , sails , must be registered , no exceptions . This means if you have an innertube , and , rig a battery and trolling motor to it , you must register it . :rolleyes:

Of course the upside is it is a non - title state , so a bill of sale signed by the seller , is usually all that is required to register the boat .
Still , you would think they could waive registration for craft under 14' and 10 HP .....
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: 9.9HP or 10HP???

A whole bunch of laws make it sooooo much more convenient to have under 10HP.
 

SS MAYFLOAT

Admiral
Joined
May 17, 2001
Messages
6,372
Re: 9.9HP or 10HP???

In Ohio, All watercraft needs registration numbers unless used on private properties . The point of the 9.9 is to squeeze the most horsepower out for use onlakes/reservoirs that have a 10 hp limit.

Like the points on you operators license. At 12 you loose them, with 11 you can keep them, but hit 12 they are gone.
 

Chinewalker

Fleet Admiral
Joined
Aug 19, 2001
Messages
8,902
Re: 9.9HP or 10HP???

Bottom line, the 9.9 is just a sticker. For all intents and purposes, it is a 10hp. Even the model numbers typically start with 10XXX
- Scott
 

Biggems

Petty Officer 2nd Class
Joined
Aug 8, 2008
Messages
148
Re: 9.9HP or 10HP???

Gotcha. Thanks everybody. The reservoir where I usualy go has a 10HP max.

In VA I'm pretty sure any vessel that is powered has to be registered.
 

bowman316

Lieutenant Commander
Joined
Oct 21, 2008
Messages
1,822
Re: 9.9HP or 10HP???

the law should be 10 hp and under, not under 10 hp.

just my 2 cents
 

YN2(SS)

Petty Officer 2nd Class
Joined
May 10, 2009
Messages
137
Re: 9.9HP or 10HP???

Heres a thought. I got two motors for my 14 alum. One to meet the requirement for a lot of water (a 3 hp Johnson) and one for the other lakes (a 15 hp Johnson) the boats max.
 

YN2(SS)

Petty Officer 2nd Class
Joined
May 10, 2009
Messages
137
Re: 9.9HP or 10HP???

Oh yeah, and a trolling motor for the "electric only" lakes and oars for the "no propulsion" lakes
 
Joined
May 15, 2009
Messages
72
Re: 9.9HP or 10HP???

In Florida it means the difference of age. To operate a vessel powered by a motor of 10 hp or greater and you are under 21 years of age you must have completed a boaters education course.

Too bad they don't make all the North Easterners take one when they get down here.

LOOOK OUT!! Here comes a Sea Ray... Hold OOOON!! BIG WAKE!! :)
 
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