35
WARNING
Remove ignition key prior to performing maintenance on the
unit.
To avoid serious injury, perform maintenance on the unit
or mower deck only when the engine is stopped and the
parking brake is engaged.
Always remove the ignition key, disconnect the spark plug
wire(s) and fasten it away from the plug(s) before beginning
the maintenance, to prevent accidental starting of the
engine.
Troubleshooting Charts
Troubleshooting the Rider
Problem: Engine will not turn over or start.
Cause Remedy
Parking brake not engaged. Engage parking brake.
PTO (electric clutch) switch in ON
position.
Place in OFF position.
Ground speed control levers not in
"NEUTRAL" position.
Move ground speed control levers to
the "NEUTRAL" position.
Out of fuel. If engine is hot, allow it to cool, then
refill the fuel tank.
Engine flooded. Move choke control to the closed
position.
Fuse blown. Replace fuse.
Battery terminals require cleaning. Clean the battery terminals.
Battery discharged or dead. Recharge or replace.
Wiring loose or broken. Visually check wiring and replace
broken or frayed wires. Tighten loose
connections.
Solenoid or starter motor faulty. Repair or replace. See authorized
dealer.
Safety interlock switch faulty. Replace as needed. See authorized
dealer.
Spark plug(s) faulty, fouled, or
incorrectly gapped.
Clean and gap, or replace. See
engine operator's manual.
Water in fuel. Drain fuel and replace with fresh fuel.
Gas is old or stale. Drain fuel and replace with fresh fuel.
Problem: Engine starts hard or runs poorly.
Cause Remedy
Fuel mixture too rich. Clean air filter. Check choke
adjustment.
Spark plug(s) faulty, fouled, or
incorrectly gapped.
Clean and gap, or replace. See
engine operator's manual.
Problem: Engine knocks.
Cause Remedy
Low oil level. Check and add oil as required.
Using wrong grade oil. See engine operator's manual.
Problem: Excessive oil consumption.
Cause Remedy
Engine running too hot. Clean engine fins, blower screen,
and air cleaner.
Using wrong weight oil. See engine operator's manual.
Problem: Excessive oil consumption.
Too much oil in crankcase. Drain excess oil.
Engine exhaust is black.
Cause Remedy
Dirty air filter. Replace air filter. See engine
operator's manual.
Engine choke is in closed position. Open choke control.
Problem: Engine runs, but rider will not drive.
Cause Remedy
Transmission release lever(s) in
"bypass" position
Move transmission release lever(s)
to the "drive" position.
Belt is broken. See authorized dealer to have drive
belt replaced.
Drive belt slips. See problem and cause below.
Parking Brake is not fully released. See authorized dealer.
Problem: Rider drive belt slips.
Cause Remedy
Pulleys or belt is greasy or oily. Clean as required.
Tension too loose. See authorized dealer.
Belt stretched or worn. See authorized dealer to have drive
belt replaced.
Problem: Brake will not hold.
Cause Remedy
Placement of parking brake cable is
not correct.
See authorized dealer.
Braking components in transmission
worn.
See authorized dealer.
Problem: Rider steers or handles poorly.
Cause Remedy
Steering lever linkages are loose. Check and tighten any loose
connections.
Improper tire inflation. See Checking Tire Pressures
Troubleshooting the Mower Deck
Problem: Mower will not raise.
Cause Remedy
Lift linkage not properly attached or
damaged.
See authorized dealer.
Problem: Engine stalls easily with mower engaged.
Cause Remedy
Engine speed too slow. Set to full throttle.
Ground speed too fast. Decrease ground speed.
Cutting height set too low. Cut tall grass at maximum cutting
height during first pass.
Discharge chute jamming with cut
grass.
Cut grass with discharge pointing
towards previously cut area.
Problem: Excessive mower vibration.
Cause Remedy
Blade mounting bolts are loose. Tighten to 50-60 ft lbs (68-81 Nm).
Mower blades, spindles, or pulleys
are bent.
Check and replace as necessary.
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