TROUBLESHOOTING Electrical Tractor Mower Troubleshooting - 41 IF CHECK Engine Runs Unevenly Cooling fins plugged. Loose electrical connections. Choke or throttle cable sticking. Fuel line or fuel filter plugged. Stale or dirty fuel. Improper fuel. Air cleaner element plugged. Engine Misses Under Load Faulty spark plug. Stale or dirty fuel. Plugged fuel filter. Engine Vapor Locks Fuel tank vent plugged. Dirt in fuel filter. Cooling fins plugged. Loose hose connection at fuel filter or fuel pump. Engine Overheats Engine air intake screen plugged. Cooling fins plugged. Engine oil low or too high. Engine operated too long at a slow idle speed.
Engine Will Not Idle Spark plug not gapped correctly. Faulty spark plug. Operator raising off the seat. Engine Knocks Stale or low octane fuel. Engine overloaded. Low engine speed. Oil level low. Engine Stops Or Misses When Operating On Hillsides Fuel tank less than half full of fuel. Operator raising off of the seat. Engine Backfires Faulty spark plug. Operator raising off of the seat. Engine Loses Power Engine overheating. Too much oil in engine. Dirty air cleaner. Faulty spark plug. Travel speed is too fast for conditions. Improper fuel. Excessive Fuel Consumption Choke is not fully open. Black Exhaust Smoke Air filter is dirty or oil soaked. Choke partially engaged.
Engine Stops When REVERSE Foot Pedal Is Depressed And Attachment Is Engaged (Hydrostatic) Normal condition. (See Using Reverse Implement Option in the OPERATING section.) IF CHECK Engine Stops When Gear Shift Lever Is Moved To The R (REVERSE) Position and Attachment Is Engaged (Gear) Normal condition. (See Using Reverse Implement Option in the OPERATING section.) IF CHECK Starter Does Not Work Or Will Not Turn Engine Brake pedal is not depressed. Mower is engaged. Battery terminals are corroded. Battery not charged. Blown fuse. Fusible Link in starting circuit is blown - See your authorized dealer Battery Will Not Charge Dead cell in the battery. Battery cables and terminals are dirty.
Low engine speed or excessive idling. Lights Do Not Work Light plug disconnected. Loose or burned out bulb. IF CHECK Tractor Vibrates Too Much Or Rattles Excessively Attachment drive belts worn or damaged. Traction drive belt damaged or worn. Dirt on drive sheaves. Blades bent or out of balance. Tractor Will Not Move With Engine Running Parking brake locked. Free-wheeling lever is engaged. Tractor Performance Becomes Slow or Jerky Front wheels lift off ground more than 6 in. when quickly engaging drive in 5th gear--replace mower drive belt. (Gear) IF CHECK Discharge Chute Plugged Travel speed too fast. Grass too long. Grass too wet. Engine rpm not at wide open throttle. Restricted air flow.
Belt installed incorrectly.