EPA engine family
Engine family 9QPSC.050SAA
If this code is printed on your emission label, this is your machine's federal record: sold under Qp-Sports, Inc., with an engine built by Zhejiang Summit Huawin Motorcycle Co., Ltd, certified as street-legal scooters and motorcycles.
- Displacement
- 49cc
- Model years
- 2009
- Models certified
- 21
- Certificates
- 1
What this record says
- Sold in the US by
- Qp-Sports, Inc.
- Engine built by
- Zhejiang Summit Huawin Motorcycle Co., Ltd.
- Vehicle category
- Highway Motorcycle - Ia (<50cc)
- Certificate numbers
- 9QPSC.050SAA-002
What the number itself says
Reading 9QPSC.050SAA left to right: 9 is the model-year letter for 2009, QPS is the three-character code the EPA assigned to Qp-Sports as certificate holder, C marks a highway (street-legal) certification, .050 is the displacement in litres, so 50cc and SAA is Qp-Sports' own sequence for that year. Nothing in the number names the factory — that comes from the certificate itself.
The engine, as described on the certificate
The certificate describes a four-stroke, single-cylinder engine with 2 valves per cylinder fed by carburettor, run by an engine control module (ECM). There is a catalytic converter in the exhaust, recorded as "oxidizing catalyst only". The head carries a pulse secondary-air (PAIR) valve.
Rated power on the record is 5.9 kW (about 8 hp) at 7,000 rpm, driving through an automatic.
- Cylinders / valves
- 1 · 2 per cylinder
- Cycle
- four-stroke
- Fuel delivery
- carburettor
- Oxygen sensor
- no
- Engine control
- ECM
- Catalytic converter
- oxidizing catalyst only
- Air injection
- PAIR
- Rated power
- 5.9 kW (≈8 hp)
- Rated speed
- 7,000 rpm
- Transmission
- automatic
- Sales area
- 49S
- Vehicle built by
- Zhejiang Summit Huawin Motorcycle Co., Ltd.
- Test vehicle model
- HY150T
Filing history and where it was sold
Qp-Sports filed one certificate under this family, for model year 2009, sold as 49-state (not certified for sale in California).
The vehicle itself is recorded as built by the same company, Zhejiang Summit Huawin Motorcycle Co., Ltd. in China — engine and chassis from one source.
Certified emission levels: CO 4.6, HC 0.37, NOx 0.22 g/km.
Models certified under 9QPSC.050SAA
Every model designation the importer listed on this certificate. If your machine's model name appears here, this is the right record — even if the name on the bodywork is slightly different.
HY50QT · HY50QT-10 · HY50QT-11 · HY50QT-12 · HY50QT-13 · HY50QT-14 · HY50QT-15 · HY50QT-16 · HY50QT-18 · HY50QT-19 · HY50QT-20 · HY50QT-3 · HY50QT-36 · HY50QT-37 · HY50QT-4 · HY50QT-5 · HY50QT-6 · HY50QT-7 · HY50QT-8 · HY50QT-9 · Lance Metro 50
Related in the registry
Source. US EPA annual certification data — EPA Certified Highway Motorcycle Test Results, MY2006-present; EPA Certified Off-Road Motorcycle / ATV / UTV / Rec Vehicle, MY2006-present. Retrieved 2026-09-07. Full provenance and method.