Cub Cadet MTD P90 Series - Manual (Page 39)

F UEL S YSTEM AND G OVERNOR
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The function of the fuel system is to store fuel, mix the fuel with air in the correct ratio and deliver it to the intake
port. The fuel system consists of the following components:
• Fuel tank
• Fuel lines
• Fuel filter
• Carburetor and insulator block
NOTE: When working on the fuel systems, look at the whole system. A problem will rarely be isolated to one
component.
Inspecting the fuel
NOTE: Fuel is the maintenance item most often overlooked by consumers. A lot of fuel systems problems are
caused by gas that is out of date or fuel with too much alcohol in it. When inspecting the fuel:
• Look for water.
• Look for dirt.
• Look for discoloration.
• Sniff carefully to see if it smells like varnish or kerosene.
• Save the fuel to show to customer.
• Look for oil in the fuel.
• Test the fuel for alcohol content if there is a reason to suspect it.
NOTE: Save a sample of the fuel collected to show the customer.
NOTE: Customers pouring engine oil into the fuel tank seems to be a growing problem.
CHAPTER 4: THE FUEL SYSTEM AND GOVERNOR