More hp then rated for

[king salami]

Re: More hp then rated for

you already have your answer: "in most states it is illegal therefore unless you know for sure that it is legal you can assume its not". in CA if you are towing a boat on trailer that is over weight rating for your vehicle you are liable to get a ticket(not that people get stopped for such things) and should you get in an accident even if someone blatenly crashes into you, you would certainly be held responsible as if you were dui. im sure the law is along similar lines when it comes to overloading a boat whether its people weight or hp rating. that being said, there are a number of ways to go about it that may be outside the confines of the law that you might not get busted for. you could grind or alter the capacity plate, change the crowling(sometimes different hp powers of the same make and model year outboards are the same size because little differences like carburation give the motor higher hp such as a common 15 to 9.9 job), change the decals on the crowling(order replacement decals from an 18hp of the same make) or fix your 15 hp.(not to get into that to much but try starting fluid in the breather and make sure to use fresh gas. dump the old gas in a 5gal bucket pour a little fresh gas in and swish it around and dump that to remove any dirt in the tank.)

New to iboats this is my first post, hope you find it helpful. also any notes as if it was to long or if thats ok if the info is "good" thanx.

 

[king salami]

Re: More hp then rated for

(not to get into that to much but try starting fluid in the breather and make sure to use fresh gas. dump the old gas in a 5gal bucket pour a little fresh gas in and swish it around and dump that to remove any dirt in the tank.)

i forgot to add make sure to bleed the line once u put the fresh gas pump the bulb a couple times while holding the other end open in the bucket. and maybe put new spark plugs there like $2 each for new ones. good luck

 

[TN-25]

Re: More hp then rated for

Then there is the issue of how the horsepower is rated. Originally outboards were rated at the powerhead, but in the mid 1980s they started rating them at the prop, which gives them a more honest but lower rating. I have a 1976 Johnson 15 that probably would put out 12 or 13 horses at the prop on a good day. Now if I throw that 15 onto the back of a 12" boat rated for 12 horsepower I might invite legal trouble, or not. Do I want to pay a lawyer and make all kinds of arguments? Meh.

For some families of motors, the 18 & 25 would more or less weigh the same and even push a boat the same. The 25 would simply have the ability to wind out more and therefore develop more peak horsepower. A 1969-76 OMC 25 on the back of a small boat would not be the same as trying to drop a heavy Big Twin 25 from the mid-1950s onto the same boat. The law is an *** (as in stubborn donkey) so even though you may think you can rationalize and explain yourself in the event of an inspection, do you really want to bring this upon yourself?

Regarding boat ratings, there are definite formulas based on hull type, length, beam, depth and perhaps even hull material, weight & load distribution.

It would not be considered irrelavent or extraneous to give us details of the motors you are running, such as brand, model and whether they are 2 or 4-stroke. Big wieght difference, and based on what I mentioned earlier about ratings methods, power difference.

 

[Home Cookin']

Re: More hp then rated for

the difference between head HP and prop HP is 100% irrelevant when it comes to getting tickets on the water. It's real easy. Compare the number on the plate and the number on the cowl. Done.