A. Engine hard to start or can not be started.
Cylinder compression
pressure normal.
Check and Adjustment
Fault Condition
Probable Causes
Loosen carburetor drain bolt to
check if there is gasoline inside
the carburetor.
Fuel supplied to
carburetor sufficient.
No fuel is supplied to
carburetor.
Remove spark plug, install it
into spark plug cap, and perform
a spark test against engine
ground.
Perform cylinder compression
pressure test.
Check for sparks.
Weak sparks, no spark at
all.
Low compression
pressure or no pressure.
Re-start by following the starting
procedures.
No ignition.
There are some signs of
ignition; nut engine can
not be started.
Remove the spark plug again
and check it.
Remove carburetor after 30
minutes and connect a hose
onto fuel rich circuit then blow
the hose with air.
Dry spark plug.
Wet spark plug.
Blowing is normal.
Blowing clogged.
No fuel in fuel tank.
Check if the pipes, fuel tank to carburetor,
and intake vacuum, are clogged.
Float valve clogged.
Lines in fuel tank evaporation system
clogged.
Malfunction of fuel pump.
Loose or damaged fuel pump vacuum
hose.
Fuel filter clogged.
Malfunction of spark plug.
Spark plug fouled.
Malfunction of CDI set.
Malfunction of AC generator.
Ignition coil is in open or short circuited.
Ignition coil leads open or short circuited.
Malfunction of main switch.
Piston ring seized.
Malfunction of cylinder valves.
Worn cylinder and piston ring.
Cylinder gasket leak.
Sand hole in compression parts.
Malfunction of throttle valve operation.
Air sucked into intake manifold.
Incorrect ignition timing.
Fuel level in carburetor too high.
Malfunction of throttle valve operation.
Throttle valve opening too wide.
Malfunction of automatic by-starter.
TROUBLE SHOOTING CHARTS
41
Summary of Contents for INTERCEPTOR GTR 250
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Page 65: ...FIG 2 CYLINDER HEAD COMP...
Page 71: ...FIG 7 R CASE COVER 26...
Page 77: ...FIG 12 MISSION CASE 45...