This International Standard specifies methods for evaluating the performance of engines designed for motorcycles as defined in ISO 3833, in particular with a view to the presentation of power curves and specific fuel consumption at full load as a function of engine speed, for net power assessment. Used in conjunction with ISO 15550, it is applicable to reciprocating internal combustion engines (spark-ignition or compression-ignition) —excluding free-piston engines —and rotary piston engines, either naturally aspirated or pressure-charged and equipped with either mechanical pressure-charger or turbocharger.
ISO 4106:2004 history
2012ISO 4106:2012 Motorcycles - Engine test code - Net power
2004ISO 4106:2004 Motorcycles - Engine Test Code - Net Power (Fourth Edition)
1993ISO 4106:1993 Motorcycles; engine test code; net power
1978ISO 4106:1978 Road vehicles — Motorcycles — Engine test code — Net power