Jinxed myself here, need help "braking" the curse...

[The Overpaid Baby]

Frame, suspension, steering, brake system : Stock from a Murray Kilowatt early 00s
Drive system: Honda GX270 9hp, Comet 40 series torque converter jack axel 14 teeth back axel 60 teeth
Tires 22x11 rear tires 145/70-6 front
I weigh about 230 6'3;and the kart weighs about 250 lbs approximately.

I'm about to give up on the Manco mechanical Disk Brake system because I can't get it to stop or even slow the machine significantly enough to feel comfortable. I've adjusted the pads numerous times and I've adjusted the cable as well. I'm either screwing up or this system isn't compatible for the weight and speed of this kart. Am I adjusting it wrong or would you all suggest changing brake systems completely? If it's the latter do you all have any suggestions that would be able to apply without involving a welder and hundreds of dollars? I was hoping there might be an alternative for around or less than $100 . If not smack me back to reality and give it to me straight...how the **** do you stop a 45mph 600lbs kart

 

[Ebrownie]

You should probably get a hydraulic brake caliper. This would help you out a lot I'm sure.

 

[mckutzy]

The brake pads can sometimes gall up with metal and crud... the disc aswell can smooth over and not work aswell as before...

The caliper should be removed, cleaned, lubricate all the sliding areas(the cam and bullet especially).
You can sand off the gall from the pads using a sanding block and paper( I would do this outside and with a mask as they might contain asbestos)... Roughing up the disc can be done using a sanding pad on a grinder(no grinding.. but sanding) to resurface the faces.

Make sure the disc is not warped and the caliper can move freely on the bracket....

Post a few pics to confirm the setup you have here.... it'll help to see, if I see something awry.