EPA engine family

Engine family APUMC0.15FST

If this code is printed on your emission label, this is your machine's federal record: sold under Puma Cycles Corporation, with an engine built by Taizhou Zhongneng (ZNEN), certified as street-legal scooters and motorcycles.

Displacement: 150cc
Model years: 2010
Models certified: 22
Certificates: 1

What this record says

Sold in the US by: Puma Cycles Corporation
Engine built by: Taizhou Zhongneng (ZNEN)
Vehicle category: Highway Motorcycle - Ib (50-169cc)
Certificate numbers: APUMC0.15FST-002

The engine, as described on the certificate

The test vehicle Puma Cycles submitted for this family (model ZN150T-7) carried engine code BN157QMJ. In the Chinese engine-model convention that reads as one cylinder with a nominal 57 mm bore, QMJ series. Against the certified 150cc that implies a stroke of roughly 59 mm — a sanity check for a piston or cylinder listing, not a published figure.

The certificate describes a four-stroke, single-cylinder engine with 2 valves per cylinder fed by carburettor. There is a catalytic converter in the exhaust, recorded as "TWC, single bed, open loop". The head carries a pulse secondary-air (PAIR) valve.

Rated power on the record is 6.2 kW (about 8 hp) at 7,000 rpm, driving through a CVT (belt and variator).

Engine code on test vehicle: BN157QMJ
Nominal bore (from the code): 57 mm · implied stroke ≈ 59 mm
Cylinders / valves: 1 · 2 per cylinder
Cycle: four-stroke
Fuel delivery: carburettor
Oxygen sensor: no
Catalytic converter: TWC, single bed, open loop
Air injection: PAIR
Rated power: 6.2 kW (≈8 hp)
Rated speed: 7,000 rpm
Transmission: CVT (belt and variator)
Sales area: 50S
Vehicle built by: Foshan Fosti Motorcycle Manufacturing Co.,Ltd.
Test vehicle model: ZN150T-7

Filing history and where it was sold

Puma Cycles filed one certificate under this family, for model year 2010, sold as 50-state, California included.

The vehicle itself is recorded as built by Foshan Fosti Motorcycle Manufacturing Co.,Ltd. in China, while the engine came from Taizhou Zhongneng (ZNEN). Chassis parts and engine parts therefore have different origins.

Certified emission levels: CO 8.4, HC 0.5 g/km.

What this configuration means when you shop for parts

Puma Cycles certified the BN157QMJ with a carburettor at 150cc, so the fuel-side wear items are the carburettor, its jets and float needle, the intake boot and the choke. The 57 mm bore in the code gives the engine size, not the carburettor size — measure the intake bore and the mounting on the BN157QMJ before ordering.

The CVT behind the BN157QMJ makes its drive belt, variator rollers and clutch shoes the consumables; belt length and width vary between 150cc machines, so measure the old belt on the ZN150T-7 rather than ordering by displacement.

The PAIR valve Puma Cycles lists on the BN157QMJ is an emissions part; its hoses perish and are the usual cause of popping on the overrun.

The exhaust on Puma Cycles' APUMC0.15FST carries a catalyst, so a replacement silencer without one changes what the BN157QMJ was certified with.

Other records carrying the same engine code

Puma Cycles certified an engine with this code under one other family number — the same engine filed again in another year, or in an off-road and a street version:

9PUMC0.15ZNE (2009)

Other certificate holders whose test vehicle carried the same engine code (10 of 74 shown):

AA Powersports Inc.9ASRC0.15ZNE2009 · same engine factory
Amstar Motors LLCSAMSC0.15MC12025 · same engine factory
Amstar Motors LLCRAMSC0.15MC12024 · same engine factory
Amstar Motors LLCPAMSC0.15MC12023 · same engine factory
Amstar Motors LLCNAMSC0.15MC12022 · same engine factory
Amstar Motors LLCMAMSC0.15MC12021 · same engine factory
Amstar Motors LLCLAMSC0.15MC12020 · same engine factory
Amstar Motors LLCKAMSC0.15MC12019 · same engine factory
Amstar Motors LLCJAMSC0.15MC12018 · same engine factory
Amstar Motors LLCHAMSC0.15MC12017 · same engine factory

A shared code from the same factory is a strong search lead. From a different factory it is as often a naming coincidence. Either way it narrows the search; it does not settle it — measure before you buy.

Models certified under APUMC0.15FST

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.

PCC Amor 150 · PCC Amstar 150 · PCC Apache 150 · PCC Apollo 150 · PCC Eagle 150 · PCC Elvis 150 · PCC Falcon 150 · PCC Forever 150 · PCC Free Bird 150 · PCC Roadstar 150 · PCC Rocky 150 · PMA Amor 150 · PMA Amstar 150 · PMA Apache 150 · PMA Apollo 150 · PMA Eagle 150 · PMA Elvis 150 · PMA Falcon 150 · PMA Forever 150 · PMA Free Bird 150 · PMA Roadstar 150 · PMA Rocky 150

Other American badges on engines from the same factory

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.