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The Scooter Parts Registry

EPA engine family

Engine family AESYX.110AAA

If this code is printed on your emission label, this is your machine's federal record: sold under Easy Vehicle, Inc., with an engine built by Zhejiang Yongkang Easy Vehicle Co., Ltd, certified as ATVs.

Displacement
—
Model years
2010
Models certified
15
Certificates
1

What this record says

Sold in the US by
Easy Vehicle, Inc.
Engine built by
Zhejiang Yongkang Easy Vehicle Co., Ltd.
Vehicle category
ATVA-Meet EPA & ARB ATV Definition
Certificate numbers
AESYX.110AAA-002

What the number itself says

Reading AESYX.110AAA left to right: A is the model-year letter for 2010, ESY is the three-character code the EPA assigned to Easy Vehicle as certificate holder, X marks an off-road certification, .110 is the displacement in litres, so 110cc and AAA is Easy Vehicle's 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 test vehicle Easy Vehicle submitted for this family (model YL808 (YH110D)) carried engine code 152FMH. In the Chinese engine-model convention that reads as one cylinder with a nominal 52 mm bore, FMH series.

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). No catalytic converter is listed.

Rated power on the record is 5.6 kW (about 8 hp) at 7,500 rpm, driving through a 3-speed manual gearbox.

Engine code on test vehicle
152FMH
Nominal bore (from the code)
52 mm
Cylinders / valves
1 · 2 per cylinder
Cycle
four-stroke
Fuel delivery
carburettor
Oxygen sensor
no
Engine control
ICM
Catalytic converter
none listed
Rated power
5.6 kW (≈8 hp)
Rated speed
7,500 rpm
Transmission
3-speed manual gearbox
Sales area
49S
Vehicle built by
Zhejiang Yongkang Easy Vehicle Co., Ltd.
Test vehicle model
YL808 (YH110D)

Filing history and where it was sold

Easy Vehicle filed one certificate under this family, for model year 2010, sold as 49-state (not certified for sale in California).

The vehicle itself is recorded as built by the same company, Zhejiang Yongkang Easy Vehicle Co., Ltd. in China — engine and chassis from one source.

Certified emission levels: CO 15.6, HC 0.77, NOx 0.13 g/km.

Other records carrying the same engine code

Easy Vehicle certified an engine with this code under 3 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 30 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 AESYX.110AAA

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.

TE110 · TE125 · TE90 · YH110 · YH125 · YK110 · YM110 · YN90 · YP110 · YS110 · YX110 · YX125 · YX90 · YZ125 · YZ90

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.