I own a water front lot in FL upon which I am building a house. I am thinking of putting a ramp on the back yard but because the lot is quite small, probably wont be able to pave a path to the street, so I am thinking of storing my jetski(I don't have one yet, but will be the firs thing to buy once the house is complete) on the backyard and launch/retrieve by hand on the ramp, is that possible? Or would it be too heavy?
It really depends on how strong you are lol, also how much of a slant is on your ramp, I can push my Trailer and Yamaha FX-SHO Jet Ski around my front yard from one driveway to the other, over the gutter and up a slope, I am 65, but I did many years of Weights at the Gym and still have 19 inch biceps.
I can still bench 150kg, I don't go to the Gym as often as I should.
My Son is 40 and he can move the Ski around as well, but he has done a lot of physical work tree loping and moving large logs about.
If you work in an Office and dont do Gym then I would recommend a motorised winch that raises and lowers your trailer up and down your ramp.
Otherwise make a friend in your new area and get Her/Him to help you.
It's like saying how long is a piece of string, what I or some one else can do doesn't mean a thing when it comes to another person.
My answer is if you are a normal healthy active man then you should be able to move a Jet Ski around on reasonably level ground, if a 65 year old can push one by himself up the gutter and up a slope equal to most normal boat ramps.
My Ski weighs 827lbs with no fuel and I normally have it at least half full when moving it about so add another 9 Australian gallons of fuel to the weight and what ever the Trailer weighs.
I think the wheels on the trailer help a lot as trying to pull the Ski up onto the beach or off takes a lot more effort

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I hope this helps you
