Troubleshooting guide

General Set Up Conditions

Chassis Attitude

The chassis attitude (frame in relation to the ground) should slope from front to rear, the front being

slightly lower than the rear. Adjusting the ride height with axle carriers in the rear and/or kingpin shims

up front, attains this.

Engine Types

Generally, 100cc karts will be set up to control understeer, as they do not have the power to require

maximum rear grip. Excessive grip will slow the kart down overall. Shifter karts require a higher

amount of weight on the rear wheels and more chassis tuning to create increased rear grip.

Tall Drivers

Tall drivers in 100cc karts will want to make adjustments to reduce grip in order to overcome the

additional leverage their higher center of gravity can produce. This may be done with more flexible

seats, a “MET30” or softer axle, maximum rear tread width, medium to short wheel hubs or no seat

struts. Drivers over 6’ may have to bolt-on (or have welded-on) and extended front porch. This will

help lower the driver’s legs and maybe even allow the seat to be moved forward, then angled back in

an effort to lower the center of gravity (cg) and “spread” the driver’s weight along the length of the kart

instead of on a vertical plane. Without these measures, it will be increasingly difficult for a tall driver to

tune a chassis as grip levels increase.