Skip to content

We don't sell parts. We tell you what you actually own, and how to check what fits.

The Scooter Parts Registry

EPA engine family

Engine family MJASX.120GKG

If this code is printed on your emission label, this is your machine's federal record: sold under Jass Motorsports Inc., with an engine built by Zhejiang Kangdi (Kandi).

Displacement
—
Model years
2021
Models certified
23
Certificates
1

What this record says

Sold in the US by
Jass Motorsports Inc.
Engine built by
Zhejiang Kangdi (Kandi)
Vehicle category
All Terrain Vehicle
Certificate numbers
MJASX.120GKG-002

What the number itself says

Reading MJASX.120GKG left to right: M is the model-year letter for 2021, JAS is the three-character code the EPA assigned to Jass Motorsports as certificate holder, X marks an off-road certification, .120 is the displacement in litres, so 120cc and GKG is Jass Motorsports' 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 Jass Motorsports submitted for this family (model KD-125FM5) carried engine code 152FMI. In the Chinese engine-model convention that reads as one cylinder with a nominal 52 mm bore, FMI series.

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 5.8 kW (about 8 hp) at 7,500 rpm, driving through a 3-speed automatic.

Engine code on test vehicle
152FMI
Nominal bore (from the code)
52 mm
Cylinders / valves
1 · 2 per cylinder
Cycle
four-stroke
Fuel delivery
carburettor
Oxygen sensor
no
Engine control
other
Catalytic converter
TWC, single bed, open loop
Air injection
PAIR
Rated power
5.8 kW (≈8 hp)
Rated speed
7,500 rpm
Transmission
3-speed automatic
Sales area
49S
Vehicle built by
Zhejiang Kangdi Technologies Group Co., Ltd.
Test vehicle model
KD-125FM5

Filing history and where it was sold

Jass Motorsports filed one certificate under this family, for model year 2021, sold as 49-state (not certified for sale in California).

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

Certified emission levels: CO 15.1, HC 1.2, HC+NOx 1.3 g/km.

Other records carrying the same engine code

Jass Motorsports 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 17 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 MJASX.120GKG

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.

KD-110A-1 · KD-110GKG-2 · KD-110GKM-2 · KD-110GKT-2 · KD-125AN-1 · KD-125AS-1 · KD-125FM5 · KD-125FM5-E · KD-125GKG-2 · KD-125GKM-2 · KD-125GKT-2 · KD-49FM5 · KD-49FM5-E · MDL- GA002-3 · MDL-125A01 · MDL-125A23 · MDL-125A25 · MDL-125A32 · MDL-125A43 · MDL-GA001 · MDL-GA002-5 · MDL-GA003-2 · MDL-GA004-3

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.