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I recently got my Yerfdog Spiderbox going and I noticed the motor struggles at acceleration. I already have a 72 tooth rear sprocket and a torque converter from BMI. I have the 10 tooth front sprocket in the torque converter but I still want to go to a lower gear ratio to help out the 212...

I've been working on this Yerf Dog several months and I'm almost done. The only thing I have left is getting the brakes to work. The master cylinder, brake hose, and caliper are new. No matter how hard I push on the brake lever, the caliper doesn't put enough pressure on the disc rotor. I used a...

I bought a used Yerf Dog last year for 300.00 and thought it was a good deal until I inspected the go kart closer when I got it to the house. After many hours of watching YouTube videos and working on the kart, I've became to like working on the go kart. My other hobby is air rifles. I'm...