Jiajue motorcycle engines
EPA certification records list 25 highway motorcycle engine families from Jiajue, model years 2012–2026. Rated power ranges from 2 to 8 kW, median 2 kW. All listed families displace 49 cc. The most families were certified in 2024 (3).
Engine families25
Engine models6
Model years2012–2026
Power range2–8 kWmedian 2 kW
Displacement49 cc – 49 cc
Rank in category#42of 108 makers by families
Families certified per year
Technical mix
Fuel
Gas25
Configuration
425
Cylinders
1 cyl25
Most certified engine models
Jj1P39Qmb12Jj1P61Qmk3Jj157Qmj349S350S3Jj1P39Qmb-A1
Engine families
| Family | Model | Year | Displacement | Power | Fuel |
|---|---|---|---|---|---|
TJAJC.049S4B | Jj1P39Qmb | 2026 | 49 cc | 2 kW | Gas |
TJAJC.169MCB | Jj1P61Qmk | 2026 | — | 8 kW | Gas |
SJAJC.049S4B | Jj1P39Qmb | 2025 | 49 cc | 2 kW | Gas |
SJAJC.169MCB | Jj1P61Qmk | 2025 | — | 8 kW | Gas |
RJAJC.049MCA | Jj1P39Qmb-A | 2024 | 49 cc | 2 kW | Gas |
RJAJC.049S4B | Jj1P39Qmb | 2024 | 49 cc | 2 kW | Gas |
RJAJC.169MCB | Jj1P61Qmk | 2024 | — | 8 kW | Gas |
PJAJC.049S4B | Jj1P39Qmb | 2023 | 49 cc | 2 kW | Gas |
NJAJC.049S4B | Jj1P39Qmb | 2022 | 49 cc | 2 kW | Gas |
MJAJC.049S4B | Jj1P39Qmb | 2021 | 49 cc | 2 kW | Gas |
LJAJC.049S4B | Jj1P39Qmb | 2020 | 49 cc | 2 kW | Gas |
KJAJC.049S4B | Jj1P39Qmb | 2019 | 49 cc | 2 kW | Gas |
JJAJC.049S4A | Jj1P39Qmb | 2018 | 49 cc | 2 kW | Gas |
HJAJC.049S4A | Jj1P39Qmb | 2017 | 49 cc | 2 kW | Gas |
HJAJC0.15S4A | Jj157Qmj | 2017 | — | 6 kW | Gas |
GJAJC.049S4A | Jj1P39Qmb | 2016 | 49 cc | 2 kW | Gas |
GJAJC0.15S4A | Jj157Qmj | 2016 | — | 6 kW | Gas |
FJAJC.049S4A | Jj1P39Qmb | 2015 | 49 cc | 2 kW | Gas |
FJAJC0.15S4A | Jj157Qmj | 2015 | — | 6 kW | Gas |
EJAJC.049S4A | 49S | 2014 | 49 cc | 2 kW | Gas |
EJAJC0.15S4A | 50S | 2014 | — | 6 kW | Gas |
DJAJC.049S4A | 49S | 2013 | 49 cc | 2 kW | Gas |
DJAJC0.15S4A | 50S | 2013 | — | 6 kW | Gas |
CJAJC.049S4A | 49S | 2012 | 49 cc | 2 kW | Gas |
CJAJC0.15S4A | 50S | 2012 | — | 6 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:JAJ). 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
Related pages
- Flywing Motor American motorcycle engines Engines
- Cobra Scooters motorcycle engines Engines
- Qlink-Keeway motorcycle engines Engines
- Hidria motorcycle engines Engines
- Highway motorcycles: 60–90 kW (≈ 80–120 hp) Powersports
- Highway motorcycles: 90–120 kW (≈ 120–160 hp) Powersports
- Highway motorcycles: 120 kW and over (≈ 160+ hp) Powersports