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Test Method Summary
The JASO M343:1992 specification test evaluates
the degree of engine output decrease, due to deposits of carbon in the
exhaust system etc, from lubricating oil, used in 2-stroke gasoline engines,
such as motorcycle engines, utility engines and outboard engines.
Test
Engine
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Suzuki generator
SX800R
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Test
Fuel
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Mixed fuel with a mixing ratio of 5:1 |
Test
conditions
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Perform mode operation until an inlet
pressure of 2kPa is reached, whilst controlling the
load between 0 and 750W, on the basis of a specified
exhaust gas temperature.
Test Sequence: In the first
stage, two test engines are run simultaneously on fuels
containing the standard reference oil and candidate
oil. Each engine is then reconditioned and the tests
rerun with the fuels used in each engine switched. |
Evaluating
method
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The total operating time between the
standard reference oil and a candidate oil is compared
and the blockage index calculated based on a reference
oil blockage index of 100 |
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