would i (13years old) be able to race a 9hp mini sprint ???

Best to talk directly to Brad or Sue Clark at 519-247-3370. You will need racing experience to jump directly to the 9hp mini sprints or be 16 years old. Given your age without experience you would have to start in the micro kart "A" division. This changes what I recommend you do kart wise. Get a 9hp chassis and run a 6.5 engine. This is legal and common in the "A" division given the size of most of the drivers. This also means you would only have to upgrade the motor to a 9hp to race in the mini sprint division when you are ready.

Possible contacts for karts are Rich Coburn at 519 263-1579, Stan Rees at 519 294-6523, Jamie Hamilton at 519-345-2054.

We still have both our karts which sound like they would work perfect for your situation. Both sprints have raced in both the 6.5 and 9 horse divisions and are suited for a driver your age and up. Call Stan at 519-294-6523.

thanks for the info
all i have to do now is convince my parents to allow me to get one

I took the same approach when I started racing. I found a good car, talked to potential sponsors, did some research, and then went to mom and dad, and it worked out pretty good.