Trouble Shooting - CPI GTR180 Service Manual

CPI MOTOR
II.TROUBLE SHOOTING
ENGINE WILL NOT BE STARTED OR HARD TO START
FLOW PATH
CHECK IF FUEL CAN BE
REACHED CARBURETOR
1
FUEL REACHES
CARBURETOR
REMOVE SPARK PLUG
AND TEST SPARK
2
GOOD SPARK
TEST CYLINDER
COMPRESSION
3 NORMAL COMPRESSION
START ENGINE
4
ENGINE FIRES
REMOVE SPARK PLUG
5
DRY PLUG
START ENGINE WITH
6
CHOKE CLOSED
BAD SITUATION
FUEL DOES NOT REACH
CARBURETOR
WEAK OR NO SPARK
LOW COMPRESSION
ENGINE FIRES, BUT
DOES NOT START
WET PLUG
2-1
《 》
GTR180
PROBABLE CAUSE
(1) NO FUEL IN TANK
(2) CLOGGED FUEL LINE BETWEEN
FUEL TANK AND CARBURETOR
(3) CLOGGED FUEL VALVE
(4) CLOGGED FUEL TANK CAP
BREATHER HOLE
(1) FAULTY OR FOULED PLUG
(2) FAULTY C.D.I.
(3) BROKEN OR SHORTED HIGH
TENSION CORD
(4) FAULTY IGNITION SWITCH
(5) INCORRECT IGNITION TIMING
(1) ENGINE NOT CRANKED
(2) NO VALVE CLEARANCE
(3) VALVE STUCK OPEN
(4) WORN CYLINDER AND PISTON
RINGS
(5) BLOWN CYLINDER HEAD GASKET
(6) FLAW IN CYLINDER HEAD
(7) INCORRECT VALVE TIMING
(8) BURNED VALVE
(1) CHOKE VALVE OPEN
(2) CARBURETOR PILOT SCREW OPEN
(3) AIR LEAKING THROUGH IN TAKE
PIPE
(4) INCORRECT IGNITION TIMING
(1) FLOODED CARBURETOR
(2) CHOKE VALVE CLOSED