Question Worksheet #14 Fuel Systems

Name:____________                                                                  Transportation Systems

Date:_____________                                                                 Mr. Wood

Question Worksheet #14 Fuel Systems

1. List 4 parts that make up the fuel system
   1. _________________________
   2. _________________________
   3. _________________________
   4. _________________________

1. If an engine has a sediment bowl on the fuel strainer and water is present in the fuel, the water will________________
   1. Float to the top of the fuel
   2. Not be visible
   3. Settle to the bottom of the bowl
   4. Escape from the sediment bowl

1. If an engine is equipped with a fuel pump and fuel is not being delivered to the carburetor, check to see that ______________.
   1. There is fuel in the gas tank
   2. The fittings connecting the fuel line to the take and pump are tight
   3. The pump filter is clean and the gasket on the filter bowl is in good condition
   4. The pump is actually working
   5. All of the above

1. the two needle valve adjustments found on most carburetors are the ___________speed adjustment and the ___________ mixture adjustment.

1. Because there are many different designs, you should always follow the _____________ when assembling a carburetor.

1. If the float is set too high in a float-type carburetor, the engine will run ________________.

1. Before making fine adjustments to the carburetor, the engine should be _______ ______.

1. List four steps for adjusting the high speed carburetor needle.
   1. ___________________________________________________________
   2. ____________________________________________________________
   3. ____________________________________________________________
   4. ____________________________________________________________
2. List three steps for adjusting the idle mixture needle.
   1. ____________________________________________________________
   2. ____________________________________________________________
   3. ____________________________________________________________
3. List three effects of leaking two-cycle engine reeds.
   1. __________________________
   2. __________________________
   3. __________________________

1. A carburetor overhaul generally consists of _______________, _________, and replacing parts.
2. A carburetor overhaul can be made much easier by obtaining an ____________________.
3. List the nine typical procedures that should be followed when removing a carburetor.
   1. _____________________________________________________________
   2. _____________________________________________________________
   3. _____________________________________________________________
   4. _____________________________________________________________
   5. _____________________________________________________________
   6. _____________________________________________________________
   7. _____________________________________________________________
   8. _____________________________________________________________
   9. _____________________________________________________________

1. When disassembling a carburetor, all _______________ parts should be removed.

1. _______________carburetor parts should never be placed in cleaning solvents.

1. To expose carburetor passages, Welch plugs should be removed with a small, sharp_____________.

1. When replacing Welch plugs, they should be inserted with the curved side ___________ and tapped into place with a(n)__________________.

1. List the eight rules that should be observed when making float-type carburetor repairs.
   1. ______________________________________________________________
   2. ______________________________________________________________
   3. ______________________________________________________________
   4. ______________________________________________________________
   5. ______________________________________________________________
   6. ______________________________________________________________
   7. ______________________________________________________________
   8. ______________________________________________________________

1. Why should the throttle plate screws and the choke plate screws be replaced with new ones when assembling a carburetor? _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________

1. After all parts are clean and dry, they should be inspected for ________________ and _____________________.

1. The tips of the idle mixture and high speed needles should be ________________ and _____________________.