JMStar Powersports motorcycle engines
EPA certification records list 48 highway motorcycle engine families from JMStar Powersports, model years 2007–2015. Rated power ranges from 2 to 13 kW, median 8 kW. Displacement spans 49 cc to 50 cc. The most families were certified in 2009 (10).
Engine families48
Engine models15
Model years2007–2015
Power range2–13 kWmedian 8 kW
Displacement49 cc – 50 cc
Rank in category#23of 108 makers by families
Families certified per year
Technical mix
Fuel
Gas48
Configuration
448
Cylinders
1 cyl422 cyl6
Most certified engine models
Sjmc-2345Sjm-250-Kk5Sjm-050-Kk5Sjm150-06-Fkd5Hnl-1805Jmsc-150-Jms413931573Sjmc-2803Hnl-0503Sjmc-150-Rhn3Shmc-2341
Engine families
| Family | Model | Year | Displacement | Power | Fuel |
|---|---|---|---|---|---|
FSJMC.049QMB | 139 | 2015 | 49 cc | 2 kW | Gas |
FSJMC.150QMJ | 157 | 2015 | — | 6 kW | Gas |
ESJMC.049QMB | 139 | 2014 | 49 cc | 2 kW | Gas |
ESJMC.150QMJ | 157 | 2014 | — | 6 kW | Gas |
DSJMC.049QMB | 139 | 2013 | 49 cc | 2 kW | Gas |
DSJMC.150QMJ | 157 | 2013 | — | 6 kW | Gas |
CSJMC0.05R22 | Sjm-050-Kk | 2012 | 49 cc | 2 kW | Gas |
CSJMC0.15636 | Sjm150-06-Fkd | 2012 | — | 7 kW | Gas |
CSJMC0.23R99 | Sjmc-234 | 2012 | — | 11 kW | Gas |
CSJMC0.254K4 | Sjm-250-Kk | 2012 | — | 13 kW | Gas |
BSJMC0.05JNK | Sjm-050-Kk | 2011 | 49 cc | 2 kW | Gas |
BSJMC0.15FKD | Sjm150-06-Fkd | 2011 | — | 7 kW | Gas |
BSJMC0.23NFG | Sjmc-234 | 2011 | — | 11 kW | Gas |
BSJMC0.25NFG | Sjm-250-Kk | 2011 | — | 13 kW | Gas |
ASJMC0.05JNK | Sjm-050-Kk | 2010 | 49 cc | 2 kW | Gas |
ASJMC0.15FKD | Sjm150-06-Fkd | 2010 | — | 7 kW | Gas |
ASJMC0.23NFG | Sjmc-234 | 2010 | — | 11 kW | Gas |
ASJMC0.25NFG | Sjm-250-Kk | 2010 | — | 13 kW | Gas |
9SJMC0.05JNK | Sjm-050-Kk | 2009 | 50 cc | 2 kW | Gas |
9SJMC0.05NFG | Hnl-050 | 2009 | 50 cc | 2 kW | Gas |
9SJMC0.15FKD | Sjm150-06-Fkd | 2009 | — | 7 kW | Gas |
9SJMC0.15HNL | Hnl-180 | 2009 | — | 8 kW | Gas |
9SJMC0.15NFG | Jmsc-150-Jms | 2009 | — | 12 kW | Gas |
9SJMC0.15RHN | Sjmc-150-Rhn | 2009 | — | 7 kW | Gas |
9SJMC0.18HNL | Hnl-180 | 2009 | — | 8 kW | Gas |
9SJMC0.23NFG | Sjmc-234 | 2009 | — | 11 kW | Gas |
9SJMC0.25NFG | Sjm-250-Kk | 2009 | — | 13 kW | Gas |
9SJMC0.28HNL | Sjmc-280 | 2009 | — | 12 kW | Gas |
8SJMC0.05JNK | Sjm-050-Kk | 2008 | 50 cc | 2 kW | Gas |
8SJMC0.05NFG | Hnl-050 | 2008 | 50 cc | 2 kW | Gas |
8SJMC0.15FKD | Sjm150-06-Fkd | 2008 | — | 7 kW | Gas |
8SJMC0.15HNL | Hnl-180 | 2008 | — | 8 kW | Gas |
8SJMC0.15NFG | Jmsc-150-Jms | 2008 | — | 12 kW | Gas |
8SJMC0.15RHN | Sjmc-150-Rhn | 2008 | — | 7 kW | Gas |
8SJMC0.18HNL | Hnl-180 | 2008 | — | 8 kW | Gas |
8SJMC0.23NFG | Sjmc-234 | 2008 | — | 11 kW | Gas |
8SJMC0.25NFG | Sjm-250-Kk | 2008 | — | 13 kW | Gas |
8SJMC0.28NFG | Sjmc-280 | 2008 | — | 12 kW | Gas |
7SJMC0.05JNK | Sjmc-050-Sjm | 2007 | 50 cc | 2 kW | Gas |
7SJMC0.05NFG | Hnl-050 | 2007 | 50 cc | 2 kW | Gas |
7SJMC0.15FKD | Sjmc-150-Ktm | 2007 | — | 7 kW | Gas |
7SJMC0.15JNK | Jmsc-150-Jms | 2007 | — | 12 kW | Gas |
7SJMC0.15NFG | Jmsc-150-Jms | 2007 | — | 12 kW | Gas |
7SJMC0.15RHN | Sjmc-150-Rhn | 2007 | — | 7 kW | Gas |
7SJMC0.18NFG | Hnl-180 | 2007 | — | 8 kW | Gas |
7SJMC0.23NFG | Shmc-234 | 2007 | — | 11 kW | Gas |
7SJMC0.25NFG | Sjm-250-Ktm | 2007 | — | 13 kW | Gas |
7SJMC0.28NFG | Sjmc-280 | 2007 | — | 12 kW | Gas |
Other motorcycle engines makers
Source
US Environmental Protection Agency engine certification data. Model year and manufacturer are decoded from EPA engine family codes (EPA codes:SJM). An engine family is a group of engines certified together; one family can cover several power ratings.
Engine calculators
Torque, power and BMEPPower from torque and RPM · Torque from power and RPM · Brake mean effective pressure (BMEP)Engine displacementDisplacement from bore, stroke and cylinders · Bore from displacement and stroke · Stroke from displacement and boreBSFC and thermal efficiencyBSFC from power and fuel flow · Fuel flow from power and BSFC · Thermal efficiency from BSFCCompression ratioStatic compression ratio · Chamber volume for a target compression ratio · Theoretical compression pressurePiston speedMean piston speed · Maximum RPM for a piston speed limit · Rod ratio, piston velocity and acceleration
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