BF40A-BF50A
No fuel in the tank
-
5.
TROUBLESHOOTING
Add fuel.
a.
ENGINE
Hard
Starting
Dry
-
Wet
-
Check for blockage in the carburetor
port and nozzle.
Check the automatic
SE
valve (P.
5-18
and
19).
Clean the electrode and restart with
the throttle
1/4
open or gradually
opening wider.
-
Sufficient fuel in the tank
4
4.
Perform spark test (See base shop
No spark or weak
manual). sparks
-
Check for collapsed or pitched fuel
line.
Perform IGNITION SYSTEM trou-
bleshooting (P.
2-7).
Not reaching thc
carburetor
Check for clogged fuel tank breather
hole: Close the tank and open the
vent knob, listen for hiss.
Check for air leaks past primer bulb.
and check whether fuel reached the
carburetor.
5.
Check compression of each cylinder
(See base shop manual).
__
I
Reaching the carburetor.
bustion chamber.
Squeeze the primer bulb and be
sure that the fuel is reaching the car-
buretor.
Check for clogged fuel filter, fuel
tubes and connector.
4
I
Normal compression
1
Reinstall the spark plugs securely and
restart the engine according to the
correct.
Check for defective cylinder head
gasket, valves or valve seats.
Check that the cylinder head bolts
are correctly tightened.
Check for worn piston, piston rings
or cylinder.