2016 OWNERS MANUAL / 0303
WHAT TYPE OF GASOLINE TO USE 
 
MasterCraft boats are equipped with ILMOR Marine Engines, the 
finest quality power plant in the industry. ILMOR supplies an Own-
er’s Manual with the purchase of the boat. Additional, very critical 
information regarding the proper use of gasoline in relation to the 
ILMOR Marine Engine is contained in the engine owner’s manual, 
including but not limited to:
•  What type of gasoline to use
•  Avoiding oxygenated fuels or fuels with alcohol
•  What to do when the boat is not used for a while
•  Fueling outside the United States and Canada. 
 
 
 
Damage to the engine by use of low-quality gasoline or gasoline 
with an octane rating below the minimum level listed for ILMOR 
MV8 engines will void the warranty on the engine. 
 
 
Extended storage with fuel in the system can affect fuel stability 
and may require system inspection and fuel filter replacement 
when the boat returns to service.
Troubleshooting the Fuel System
Fuel Pump Does Not Run When The Engine Start-Stop  
Button Is Pressed
Cause 1
Pump may not be receiving sufficient voltage to the pump, or there 
may be corrosion interfering with the electrical impulse.
Remedy 1
Take the boat to an authorized MasterCraft dealer. Only the dealer 
has the specialized, required tools to correct the problem. 
Cause 2
The fuel pump relay may be flipped at the engine fuse block.
Remedy 2
Reset the relay. 
Potential Cause 3
Both of the two in-line fuses between the fuel pump and the engine 
may have blown.
Potential Remedy 3
Fuses will need to be replaced.