Service manual

ELECTRICAL
No Spark, Weak or Intermittent Spark
No12 volt power or ground to CDI
Spark plug gap incorrect
Fouled spark plug
Faulty spark plug cap or poor connection to high
tension lead
Related wiring loose, disconnected, shorted, or
corroded
Engine Stop switch or ignition switch faulty
Poor ignition coil ground (e.g. coil mount loose or
corroded)
Faulty stator (measure resistance of all ignition related
windings)
Incorrect wiring (inspect color coding in connectors
etc)
Faulty ignition coil winding (measure resistance of
primary and secondary)
Worn magneto (RH) end Crankshaft bearings
Sheared flywheel key
Flywheel loose or damaged
Excessive crankshaft runout on magneto (RH) end -
should not exceed .005
Faulty CDI module
CHARGING SYSTEM
MAIN FUSE ASSEMBLY
The main fuse assembly is located under the seat and
has a 15-amp capacity.
NOTE: Use only the recommended fuse capacity, as
use of a higher amperage fuse to correct blown—fuse
situations could lead to electrical component
damage.
Voltage Regulator / Rectifier
1. The voltage regulator / rectifier is located under the
headlight of right hand front cab.
2. If a problem exists with the charging system, test the
components around the regulator/rectifier to isolate the
component. If the stator is supplying sufficient AC current and
there is no DC current leaving the regulator/rectifier, replace
the component.
9.17