Need advice on 2000 GTX carb 951 model

[offgrididaho]

Bought a low compression (either 100ea cyl or 110 ea cyl , used 2 gauges) seadoo in great condition with a trailer in great condition for $900.
The trailer is worth 900 so I got a near new looking ski free. The clock shows 225hrs. I need advice on how to proceed. It was supposedly rebuilt and never ridden and I can see paint chips off head bolts but nothing else. Gray lines have been replaced. Not sure if carbs were rebuilt. Last reg tag is 2025.

Do I swap motors?
Do I use a wiseco top end and see how long it runs?
Where is a great place to buy a motor?
Do I rebuild it myself including crank?

Warranty is meaningless to me as I won't ever pull a second motor and install a third. TOO MUCH WORK! Im too old and have bad arthritis.
I need a motor that WILL BE 100% reliable and never need a warranty. I know its a lot to ask but I dont want junk!

 

[WhiskeyD]

Why not tear down the motor in it and inspect?

 

[offgrididaho]

?
To what end? I know the motor is bad.
Did you see the 4 questions I asked?

 

[shamrock246]

Can you bore scope the cylinders? Does it run?

Do you have a spare motor to swap out?
The bore sizing has to be done different for forged pistons vs cast (OEM)
Not sure of a good place to buy a rebuilt motor, I rebuilt my own.
I rebuilt mine (787), I had my crank rebuilt by Competitive Crankshafts on Facebook and a top end kit from River Rat Bob on eBay. GroupK is highly recommended for top ends.

 

[burtshaver2021]

?
To what end? I know the motor is bad.
Did you see the 4 questions I asked?

As mentioned above I think inspecting the motor would be you first step. Take it apart, measure your bores. You did mention it was just rebuilt? Have you tried starting it? It would be good for you to know what you have. Or if you don’t want to be bothered with that type of thing just buy a rebuilt moto and drop it in. Peter Rucinsky is who I would recommend. Can’t remember the business name but if you search his name you should be able to find him

 

[burtshaver2021]

Just read the last part of your original post, sounds like the best thing for you to do would be to tow the whole machine to someone and have them pull the engine and drop in a new one for you. Again Peter Rucinsky. Don’t get any blow Joe to do the work, I can tell you from experience that automotive mechanics don’t know these machines well enough to do the work properly. You need someone with plenty of experience with them