Happy 4th everyone. Before I buy sprockets for my dart kart I,am working on ,does anyone know what a good starting number would get me close. I,am 66 , weigh 170lbs, Mac 5 motor horstman rev grip 10 tooth clutch, rupp a bone kart. Thankyou
rearenginekarts.com
here is the site for Fremont.....they don't race ,,so gearing is not as important as the fun factor is,,,
gary
Mel, with an Mc5, EVERYTHING depends on whether the engine is modified, and especially whether it has a thin ring piston, or the original thick ring. This engine in stock form hasn't a lot of torque or RPM. With a stocker and your weight, maybe start at 10-70 or 10-72 and go from there. Even if it's not optimum, you'll be in the ball park, and you'll have fun and a good ride. Ted