The starter generator on your cart is responsible for getting things moving before the engine actually starts. When you push the pedal just enough to get the solenoid to click, the starter will come on before the engine runs. What is going on is the starter is turning the crankshaft at a high enough RPM to produce a spark. When you push the pedal down a little further and get the cables to engage, the butterfly valve on the carb will open, allowing gas vapor to flow into the engine. Once that happens, everything rumbles to life, and you take off. The Club Car and E-Z-GO Starter Generator Brush Set will allow you to spring that starter back to life if it has been hard to start.The golf cart brushes deliver power to the armature by pressing directly into it while it spins. Over time the armature wears down these OEM brushes until a gap is formed. Once that happens, you lose power. Call Buggies Unlimited and get a set coming today.