MasterCraft 2007 X-Series User Manual

Using Care While Fueling
2007 MasterCraft Owners Manual - Page 6-1
The ignition timing as set by the factory re-
quires the use of unleaded fuel with an Anti-
Knock Index Number (AKI)/Pump Octane
Number range between 89 octane and 93
octane. Nearly any medium-grade gasoline
available for automotive use may be used.
Fuel Systems
The ProStar, MariStar and X-Series mod-
els are equipped with a new, highly inno-
vative fuel system. This system is designed
to provide you with years of trouble-free
service. Some of the latest innovations re-
lated to fuel handling safety are also incor-
porated into the fuel delivery system.
The system uses a fuel pump mounted in
a capsule that is installed directly in a fuel
tank. A similar system has been used in au-
tomotive vehicles for over a decade and has
provided years of proven service. The pump
quires the use of unleaded fuel with an Anti-
Knock Index Number (AKI)/Pump Octane
Number range between 89 octane and 93
octane. Nearly any medium-grade gasoline
available for automotive use may be used.
Fuel Systems
The ProStar, MariStar and X-Series mod-
els are equipped with a new, highly inno-
vative fuel system. This system is designed
to provide you with years of trouble-free
service. Some of the latest innovations re-
lated to fuel handling safety are also incor-
porated into the fuel delivery system.
The system uses a fuel pump mounted in
a capsule that is installed directly in a fuel
tank. A similar system has been used in au-
tomotive vehicles for over a decade and has
provided years of proven service. The pump
systeminyourboatwasspecicallydesignedforthemarineenvironmentandcontainsanumberofaddedsafetycompo-
nents that are unique to the marine system. Because of the special nature of the design, there are no user-serviceable parts.
Any parts in need of service or maintenance will need to be addressed by your MasterCraft dealer. The technical team there
is equipped with the special tools needed to dissemble and service the fuel capsule and associated parts.
The fuel line that travels in the boat’s bilge area from the tank to the engine is a special multi-layer armored
linethatiscoveredwithaspecialmaterialknownasaresleeve.Theresleeveaffordsprotectiontothefuellinein
theunlikelyeventofaboatre.
 Thesleeveiscoloredorangeinordertoaffordeasyidenticationtothefuelline.MasterCraftrecommends
daily inspection of the bilge for foreign materials and the possibility of gas or oil leakage detection. As part of your
dailyinspection,includeavisualcheckoftheorangere–sleevedfuelline.Ifyouseedamagetothesleeveorlineor
inanywaysuspectdamageorfuelleakage,DONOTSTARTYOURBOAT!ImmediatelycallyourMasterCraftservicing
dealer and let him or her assess the situation.
Alternatives and Additives
 Wedonotrecommendthatyouusealcohol-modiedfuelsinyourMasterCraftboatbecauseofthefollowingsideeffects:
• Moisture: Alcohol-blended fuels absorb and keep moisture. Moisture inside the fuel tank causes many engine
problems.
• Performance: Alcohol-blended fuels cause the engine to operate on a leaner fuel/air ratio and may cause
hard starting, stalling and vapor lock. Engine damage may result.
• Deterioration: Alcohol quickly deteriorates rubber and plastic components in the fuel system, causing more
frequentinspectionandreplacementofparts.Thisincreasesthepotentialforreandexplosionduetofuel
leakage. The new fuel system, however, is designed to withstand alcohol and MTBE fuel additives commonly
foundinthenew“oxygenated”fuels.Westillrecommendfuelswithaslittlealcoholaspossibleduetothe
moistureabsorptionproblemidentiedabove.
NOTE: Fuel additives and treatments, other than conditioners for moisture absorption and winter storage, are
not recommended for use in MasterCraft Power engines.
Using Oxygenated Fuels or Fuels with Alcohol
MBTE (methyl butyl tertiary ether)isanyoxygenateandoctaneenhancer.Thiscompoundisblendedwithfuel
in some parts of the country. Fuel that is no more than 15% MBTE is acceptable for use in your engine. Ethyl alcohol or
grain alcohol is acceptable for use as long as it is a blend and the blended fuel contains no more than 10% ethanol.

MasterCraft 2007 X-Series Specifications

General

Brand	MasterCraft
Model	2007 X-Series
Category	Boat
Language	English