Lawn-Boy M Series User Manual

Zone Start Models MPlZPR, M21ZMR
NO SPARK
FOR ALL TESTS
Have Lawn-Boy Test Plug, Part No. 426814 installed
Grass catcher installed and fully seated at chute interlock switch
Hold blade control bail engaged
Check for spark
SPARK
System ok
NO SPARK
Disconnect yellow wires at brake
Note: Wires must not be grounded
during test.
Check for spark
switch teminal
I
SPARK
I
NO SPARK
Repair/Replace brake switch Reconnect yellow wires at
NOTE: Look for moisture or debris on brake switch terminal
switch. Clean and blow dry
Disconnect chute interlock switch
Check for spark
I
SPARK NO SPARK
Replace chute interlock switch
Reconnect chute interlock switch
NOTE: Stainless steel mounting screw
Check/Clean ground terminal at CD
must be used.
Ignition Module or governor bracket
screw
Check high tension lead
Check for spark
I
SPARK NO SPARK
System ok Disconnect yellow wire at CD Ignition
Module
Check for spark
SPARK NO SPARK
Inspect wire harness for pinched, shorted Replace CD Ignition Module
or grounded wires Repair/Replace

Lawn-Boy M Series Specifications

General

Brand	Lawn-Boy
Model	M Series
Category	Lawn Mower
Language	English