Vari xp-200, User Manual

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VARI XP-200
8.3 Oxygenated fuels
Some conventional gasoline are being blended with alcohol or an ether compound, these gasoline are collectively referred to as
oxygenated fuels, to meet clean air standard, some areas use oxygenated fuels to help reduce emissions.
If you use an oxygenated fuel, be sure it is unleaded and meets the minimum octane rating requirement.
Before using an oxygenated fuel, try to confirm the fuel’s contents, some areas require this information to be posted on the pump.
The following are the EPA approved percentages of oxygenates:
ETHANOL: (ethyl or grain alcohol) 10% by volume you may use gasoline containing up to 10% ethanol by volume.Gasoline
containing ethanol may be marketed under the name “gasohol”.
MTBE: (methyl tertiary butyl ether) 15% by volume you may use gasoline containing up to 15% MTBE by volume.
METHANOL: (methyl or wood alcohol) 5% by volume you may use gasoline containing up to 5% methanol by volume, as long as it
also contains cosolvents and corrosion Inhibitors to protect the fuel system. Gasoline containing more than 5%
methanol by volume may cause starting and/or performance problems. It may also damage metal, rubber, and plastic
parts of your fuel system.
If you notice any undesirable operating symptoms, try another service station, or switch to another brand of gasoline.
Fuel system damage or performance problems resulting from the use of an oxygenated fuel containing more than the percentages of
oxygenates mentioned above are not covered under warranty.
8.4 Emission Control System Information
8.4.1 Source of Emissions
The combustion process produces carbon monoxide, oxides of nitrogen, and hydrocarbons. Control of hydrocarbons and oxides of
nitrogen is very important because, under certain conditions, they react to form photochemical smog when subjected to sunlight. Carbon
monoxide does not react in the same way, but it is toxic.
Shineray utilizes lean carburetor settings and other systems to reduce the emissions of carbon monoxide, oxides of nitrogen and
hydrocarbons.
8.4.2 Tampering and Altering
Tampering with or altering the emission control system may increase emissions beyond the legal limit. Among those acts that constitute
tampering are:
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Removal or alteration of any part of the intake, fuel or exhaust systems.
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Altering or defeating the governor linkage or speed-adjusting mechanism to cause the engine to operate outside its design
parameters.
8.4.3 Problems That May Affect Emissions
If you are aware of any of the following symptoms, have your engine inspected and repaired by your servicing dealer.
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Hard starting or staling after starting.
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Rough idle
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Misfiring or backfiring under load.
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Afterburning (backfiring).
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Black exhaust smoke or high fuel consumption.
8.4.4 Replacement Parts
The emission control systems on your engine were designed, built. We recommend the use of genuine parts whenever you have
maintenance done. These original-design replacement parts are manufactured to the same standards as the original parts, so you can be
confident of their performance. The use of replacement parts that are not of the original design and quality may impair the effectiveness of
your emission control system.
A manufacturer of an aftermarket part assumes the responsibility that the part will not adversely affect emission performance. The
manufacturer or rebuilder of the part must certify that use of the part will not result in a failure of the engine to comply with emission
regulations.
8.4.5 Maintenance
Follow the maintenance schedule. Remember that this schedule is based on the assumption that your machine will be used for its
designed purpose. Sustained high-load or high-temperature operation, or use in unusually wet or dusty conditions, will require more
frequent service.
8.5 Engine tune-up
8.5.1 Adjustment
Each adjustable part is set at right range and no more adjustment is needed.
You can reset it as following instruction if necessary:
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