Cessna 150 Series Service Manual page 153

12-4. TROUBLE SHOOTING.
TROUBLE PROBABLE CAUSE REMEDY
NO FUEL TO CARBURETOR. Fuel shut-off valve not turned on.
Turn valve on. (Safety in ON
position.)
Fuel tanks empty. Service with proper grade and
amount of fuel.
Fuel line disconnected or broken.
Connect or repair fuel lines.
Inlet elbow or inlet screen in Clean and/or replace.
carburetor plugged.
Fuel tank outlet strainers plugged. Remove and clean strainers and
flush out fuel tanks.
Defective fuel shut-off valve.
Replace shut-off valve.
Plugged fuel strainer. Remove and clean strainer and
screen.
Fuel line plugged. Clean out or replace fuel line.
FUEL STARVATION AFTER Partial fuel flow from the preceding Use the preceding remedies.
STARTING. causes.
Plugged fuel vent. See paragraph 12-11.
Water in fuel. Drain fuel tank sumps, fuel
lines and fuel strainer.
NO FUEL QUANTITY Fuel tanks empty. Service with proper grade and
INDICATION.
amount of fuel.
Blown fuse. Replace blown fuse.
Loose connections or open Tighten connections; repair or
circuit. replace wiring. Refer to Sec-
tion 20.
Defective fuel quantity indi- Refer to Section 15.
cator or transmitter.
PRESSURIZED FUEL TANK Plugged bleed hole in fuel vent.
Check per paragraph 12-11.
SHOP NOTES:
12-2