Yard-Man YM300 - Manual (Page 17)

17
SECTION 8: TROUBLESHOOTING GUIDE
If further assistance is required, contact your authorized service dealer
Trouble Possible Cause(s) Corrective Action
ENGINE WILL
NOT START
• On/Off control in the STOP position
• Empty fuel tank
• Primer bulb wasn’t pressed enough
• Engine is flooded
• Old or improperly mixed fuel
• Fouled spark plug
• Plugged spark arrestor
• Turn On/Off control to ON
• Fill fuel tank with properly-mixed fuel
• Press primer bulb fully and slowly 10 times
• Use starting procedure with choke lever in the RUN
position
• Drain gas tank and add fresh fuel mixture
• Replace or clean spark plug
• Clean or replace the spark arrestor
ENGINE WILL
NOT IDLE
• Air filter is plugged
• Old or improperly mixed fuel
• Improper carburetor adjustment
• Replace or clean the air filter
• Drain gas tank and add fresh fuel mixture
• Adjust according to the Carburetor Adjustment section
ENGINE WILL
NOT
ACCELERATE
• Old or improperly mixed fuel
• Improper carburetor adjustment
• Cutting attachment bound with grass
• Dirty air filter
• Plugged spark arrestor
• Drain gas tank and add fresh fuel mixture
• Take to an authorized service dealer for adjustment
• Stop the engine and clean the cutting attachment
• Clean or replace the air filter
• Clean or replace spark arrestor
ENGINE
LACKS
POWER OR
STALLS
WHEN
CUTTING
• Old or improperly mixed fuel
• Improper carburetor adjustment
• Fouled spark plug
• Plugged spark arrestor
• Drain gas tank and add fresh fuel mixture
• Take to an authorized service dealer for adjustment
• Replace or clean spark plug
• Clean or replace the spark arrestor
CUTTING
ATTACHMENT
WILL NOT
ADVANCE
LINE
• Cutting attachment bound with grass
• Cutting attachment out of line
• Inner reel bound up
• Cutting head is dirty
• Line welded
• Line twisted when refilled
• Not enough line is exposed
• Stop the engine and clean cutting attachment
• Refill with new line
• Replace the inner reel
• Clean inner reel and outer spool
• Disassemble, remove the welded section and rewind
• Disassemble and rewind the line
• Push the bump knob and pull out line until 4 inches
(102 mm) of line is outside of the cutting attachment
CUTTING LINE
ADVANCES
WILDLY
• Oil is in the cutting head • Clean the cutting head attachment