Keeway motorcycle engines
EPA certification records list 23 highway motorcycle engine families from Keeway, model years 2008–2013. Rated power ranges from 3 to 13 kW, median 8 kW. All listed families displace 49 cc. The most families were certified in 2010 (5).
Engine families23
Engine models5
Model years2008–2013
Power range3–13 kWmedian 8 kW
Displacement49 cc – 49 cc
Rank in category#48of 108 makers by families
Families certified per year
Technical mix
Fuel
Gas23
Configuration
42023
Cylinders
1 cyl192 cyl4
Most certified engine models
Scooter11Hmc5A23Cyc2Av2
Engine families
| Family | Model | Year | Displacement | Power | Fuel |
|---|---|---|---|---|---|
DKWYC.049A4T | Hmc | 2013 | 49 cc | 3 kW | Gas |
DKWYC.150KWA | Scooter | 2013 | — | 8 kW | Gas |
DKWYC.150T10 | A2 | 2013 | — | 9 kW | Gas |
DKWYC.250MFI | Hmc | 2013 | — | 13 kW | Gas |
CKWYC.049A4T | Hmc | 2012 | 49 cc | 3 kW | Gas |
CKWYC.150T10 | A2 | 2012 | — | 9 kW | Gas |
CKWYC.250MFI | Hmc | 2012 | — | 13 kW | Gas |
BKWYC.049A4T | Hmc | 2011 | 49 cc | 3 kW | Gas |
BKWYC.150KWA | Scooter | 2011 | — | 8 kW | Gas |
BKWYC.150T10 | A2 | 2011 | — | 9 kW | Gas |
BKWYC.250QJL | Cyc | 2011 | — | 13 kW | Gas |
AKWYC.049KW2 | Scooter | 2010 | 49 cc | 3 kW | Gas |
AKWYC.049KW4 | Scooter | 2010 | 49 cc | 3 kW | Gas |
AKWYC.150KWA | Scooter | 2010 | — | 8 kW | Gas |
AKWYC.150T10 | Av | 2010 | — | 9 kW | Gas |
AKWYC.250QJL | Cyc | 2010 | — | 13 kW | Gas |
9KWYC.049KW2 | Scooter | 2009 | 49 cc | 3 kW | Gas |
9KWYC.049KW4 | Scooter | 2009 | 49 cc | 3 kW | Gas |
9KWYC.150CSL | Av | 2009 | — | 9 kW | Gas |
9KWYC.150KWA | Scooter | 2009 | — | 8 kW | Gas |
8KWYC.049KW2 | Scooter | 2008 | 49 cc | 3 kW | Gas |
8KWYC.049KW4 | Scooter | 2008 | 49 cc | 3 kW | Gas |
8KWYC.150KWA | Scooter | 2008 | — | 8 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:KWY). 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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