Re: Limited HP Lake
I did run a 35hp Mariner for years with a set of 9.9 hp decal on it and the model plate swapped off a 9.9 motor with no problems. Never did get checked. I did have a few guys pull up to me and ask why my boat even though much larger was so much faster. I could top out at about 29 mph with a 16' modified V aluminum bass boat with stick steer. It got all sorts of looks but never gained the attention of any of the authorities. I bought it that way and just ran it, and I ran it like that for years. If you put that motor along side of a 9.9 it was way larger but I always just pawned it off as being an 'older model' or 'the cover is larger due to the electric start'. I never really opened it up either way as not to attract attention, but I'd give an all out run every so often if no one was around. A buddy of mine runs a 50hp with 9.9 decals but that's pushing it a bit, but he's never been bothered.
I did watch them tow and confiscate a guys boat one day that had twin 55hp Johnsons on it, he dumped it in the water, fired both motors up and off he went, in minutes, they were on him and had him in cuffs. The guy was new to the area, knew nothing about any motor limit, (It's not posted anywhere), and towed his boat and trailer and took him away. The made a big deal of it. I actually ended up buying both motors from him cheap in exchange for a 9.9 he could run. He had moved from another state and decided to take his boat out, he actually didn't realize he was in the lake, he had thought it led to the main river, but there's a huge dam in between.
The fines if they had stuck were something like $35k plus several pulution related EPA fines, noise violation fines etc. They had written quite a few by the time they were done. I don't think anything stuck other than one for not having a valid ID to park on state owned property. (They require that you either have a fishing license receipt or state issued parking permit to park your truck and trailer at a public launch. This is mostly to keep out loiterers and swimmers from boating areas.
I really don't mind the 10hp limit lake rule, it keeps out skiers and jet skis, it keeps the lake strictly for fishing. There's the occasional sail boat but they don't venture into the areas where we fish.