TROUBLESHOOTING
SERVICE MANUAL NUMBER 24
Page 1C-10
90-861327--1 OCTOBER 1999
Fuel System Rich
Cause
Special Information
Warm engine carburetor percolation
Fuel boils out of float bowl when shut off
and warm. Floods intake manifold.
Clogged flame arrestor
Automatic choke not opening
Float adjustment
Float leaks or is saturated with fuel
Needle and seat leaking
Carburetor gaskets leaking
Excessive fuel pump pressure
Cracked or porous carburetor body
Unseats needle and seat
Fuel System Lean
Cause
Special Information
Empty fuel tank
Fuel shut-off valve closed
Vapor lock
Engine will not start after warm engine
shut down
Automatic choke
Stuck open, wrong adjustment
Miscellaneous
Cause
Special Information
Low grade or stale fuel
Water in fuel
Index