STARTERS Nicad System 2.  Engine Will Not Crank - A. Faulty safety interlocks. B. Discharged or defective battery. C. Faulty electrical connections. D. Faulty starter motor switch (open circuit). E. Open circuit in starter motor. F. Defective rectifier assembly (120 VAC only). G. Brushes sticking, etc. H. Faulty solenoid. I. Power source inoperative (wall outlet-120 VAC only). 3.  Starter Motor Spins; But Does Not Crank Engine - A. Sticking pinion gear due to dirt. B. Damaged pinion or ring gear. C. Battery faulty or damaged. D. Incorrect rotation due to reversed motor polarity - all motors rotate counterclock-wise viewed from pinion gear. 4. Starter Motor Blows Fuses - (120 Volt Starter Motor Only) A. Shorted starter motor switch. B. Shorted rectifier assembly. C. Shorted 120 volt extension cord to starter motor. D. Armature shorted. E. Overloaded circuit. 5.  Starter Motor Spins; Will Not Stop A. Defective starter switch. NICKEL-CADMIUM STARTING SYSTEM SERIES 92000 and 110900 ENGINES This Briggs & Stratton starter system consists of a starter motor and a starter switch, a wiring harness and a nickel cadmium rechargeable battery and battery charger. When the ignition key is turned to START, the battery supplies power to the starter motor, cranking the engine similar to the system used in an automobile.  Under normal conditions, the battery will provide 40 to 60 starts before recharging is necessary. NOTE: Some equipment manufacturers use a battery and charger of a different style than illustrated.  In such cases, follow the equipment manufacturer’s recommendations. When the battery needs recharging, the charger is plugged into a 120 volt AC household outlet, and then connected to the battery.  The battery will be fully charged within a 14 to 16 hour period.  It is not recommended the battery be recharged if temperatures are below ^40° F ^(4° C).  Continual charging may be harmful to this battery.  For best results, charge the battery within temperature limits of 400 F (40 C) to 1050 F (400 C) and after each use of equipment.  When long periods of storage are encountered, the battery should be charged over night every two months.  This type of battery will lose its charge when not in use.  This will shorten battery life. NOTE: The battery is shipped in a discharged state and must be charged 14 to 16 hours prior to its initial use. Fig.  49 - Wiring Diagram NOTE: If a starting problem is encountered, the engine itself should be thoroughly checked to eliminate it as the cause of starting difficulty.  It is a good practice to check the engine for freedom of rotation by removing the spark plug and turning the crankshaft over by hand, to be sure it rotates freely. 10