Design of the MCCIS on the Gas- fueled motorcycle to overcome detonation in engine idling / Didik Nurhadiyanto...[et al.]

Gasoline consumption is greater than fuel oil production in Indonesia. The
situation has come to that of a fuel oil crisis. Prior research indicates that the
exhaust gas emission of motorized vehicles using gasoline contains lead still
as heavy metal. The problem with vehicles using fuel gas is that with the engine
ignited and left idling detonation occurs because the gas supply is great while
the air supply is small. In addition, the gas tank posible to explodes when
sparks come from the combustion chamber. The objective of the research
concerned here was to design the Mechanics Converter Considering Idle
System (MCCIS) to overcome the problem of detonation at the time of engine
idling, to design a flame arrester to prevent an exploding gas tank, and to
testing the exhaust gas emission. The MCCIS may be used on low or high speed
motorcycles using fuel gas. No detonation occurred in idle speed throughout.
The flame arrester was able to avoid the sparks so the fire wasn't moving into
the gas tank. Results of the exhaust gas emission tests indicate that exhaust gas
emissions at idling, moderate and high speeds are included in the CO and HC
content of the specified magnitude.