73 TROUBLESHOOTING TROUBLESHOOTING ENGINE TROUBLESHOOTING If something is wrong with the engine, refer to the table below for the cause and its corrective measure. Trouble Cause Countermeasure Engine is difficult to start or will not start. A The range shift lever not in the proper position. A Make sure the range shift lever is in "NEUTRAL" position. A Key switch is not in the proper position. A Make sure key switch is in "ON" position. A No fuel. A Replenish fuel. A Improper or stale fuel. (Fuel quality is poor.) A Replace fuel and consult your KUBOTA Dealer. A Water or dirt in the fuel system. A Replace fuel and consult your KUBOTA Dealer. A Fuel hose or fuel filter clogged or damaged.
A Clean or replace fuel lines, and consult your KUBOTA Dealer. A Air cleaner is clogged. A Clean or replace the air cleaner element. A Spark plug defective. A Adjust the spark plug gap or replace the spark plug. A Check the spark plug wire connection. A Fuse is blown. A Replace the fuse. A Engine oil viscosity is wrong. A Use oils of different viscosities, depending on ambient temperature. A Battery becomes weak and the engine does not turn over quick enough. A Clean battery cables and terminals. A Charge the battery. A In cold weather, always remove the battery from the engine, charge and store it indoors. Install it on the machine only when the machine is going to be used.
Insufficient engine power. A Insufficient or dirty fuel. A Check the fuel system. A Air cleaner is clogged. A Clean or replace the air cleaner element. A Spark plug defective. A Adjust the spark plug gap or replace it. Engine stops suddenly. A Insufficient fuel. A Refuel.