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The Scooter Parts Registry

EPA engine family

Engine family DBMSC0.15ZNE

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

Displacement
150cc
Model years
2013
Models certified
16
Certificates
1

What this record says

Sold in the US by
BMS Motorsports, Inc.
Engine built by
Taizhou Zhongneng (ZNEN)
Vehicle category
Highway Motorcycle - Ib (50-169cc)
Certificate numbers
DBMSC0.15ZNE-001

The engine, as described on the certificate

The test vehicle BMS Motorsports 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, run by an ignition control module (CDI-type ignition). 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
Engine control
ICM
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
Taizhou Zhongneng Motorcycle Co.,Ltd.
Test vehicle model
ZN150T-7

Filing history and where it was sold

BMS Motorsports filed one certificate under this family, for model year 2013, sold as 50-state, California included.

The vehicle itself is recorded as built by the same company, Taizhou Zhongneng Motorcycle Co.,Ltd. in China — engine and chassis from one source.

Certified emission levels: CO 8.4, HC 0.4 g/km.

Other records carrying the same engine code

BMS Motorsports certified an engine with this code under 16 other family numbers — the same engine filed again in another year, or in an off-road and a street version:

Other certificate holders whose test vehicle carried the same engine code (10 of 59 shown):

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 DBMSC0.15ZNE

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.

BMS Astro 150 · BMS BeMine 150 · BMS Pinnacle 150 · BMS Chelsea 150 · BMS Grandprix 150 · BMS Heritage 150 · BMS Kerrigan T-150 · BMS Mediterranean 150 · BMS Palazzo 150 · BMS Patriot 150 · BMS Premier 150 · BMS Roman 150 · BMS Rosetta DLX 150 · BMS The Legend 150 · BMS Tuscan 150 · BMS Valkyrie 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.