Petcock Fuel Valve
Fuel Delivery Check
Fuel System Check
Engine will not start
Four stroke engine troubleshoot
Valves may be attached to the fuel tank or in line.
The valves are used as a fuel switchs ( on off and reserve)
Problems
Leaking valve
Clogged valve
Incorrect installation
Testing valve
Disconnect fuel line to carburetor
If fuel does not flow
Move lever to a different position
Check fuel level in tank
Check for restriction in fuel line or valve
If fuel flows through delivery line
Reattach line
With petcock open turn carburetor fuel drain screw counter clockwise
Fuel should flow from carburetor drain tube.
This will also remove water from carburetor bowl.
Tighten drain screw.
 ATV Dirtbike
|  Type 2 |  Generator Fuel Valve Type K |