EPA engine family
Engine family 7KMTX.150DML
If this code is printed on your emission label, this is your machine's federal record: sold under Kayo Motor Machinery, Inc., with an engine built by Lifan, certified as off-road machines.
- Displacement
- —
- Model years
- 2007
- Models certified
- 24
- Certificates
- 1
What this record says
- Sold in the US by
- Kayo Motor Machinery, Inc.
- Engine built by
- Lifan
- Vehicle category
- Off-Road Motorcycle
- Certificate numbers
- 7KMTX.150DML-001-R01
What the number itself says
Reading 7KMTX.150DML left to right: 7 is the model-year letter for 2007, KMT is the three-character code the EPA assigned to Kayo Motor Machinery as certificate holder, X marks an off-road certification, .150 is the displacement in litres, so 150cc and DML is Kayo Motor Machinery'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 Kayo Motor Machinery submitted for this family (model K150) carried engine code 1P55FMJ-2E10.
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 9.2 kW (about 12 hp) at 9,000 rpm, driving through a 4-speed manual gearbox.
- Engine code on test vehicle
- 1P55FMJ-2E10
- Cylinders / valves
- 1 · 2 per cylinder
- Cycle
- four-stroke
- Fuel delivery
- carburettor
- Oxygen sensor
- no
- Engine control
- ICM
- Catalytic converter
- none listed
- Rated power
- 9.2 kW (≈12 hp)
- Rated speed
- 9,000 rpm
- Transmission
- 4-speed manual gearbox
- Sales area
- 50S
- Vehicle built by
- Jinyun Kayo Motor Machinery Co., Ltd.
- Test vehicle model
- K150
Filing history and where it was sold
Kayo Motor Machinery filed one certificate under this family, for model year 2007, sold as 50-state, California included.
The vehicle itself is recorded as built by Jinyun Kayo Motor Machinery Co., Ltd. in China, while the engine came from Lifan. Chassis parts and engine parts therefore have different origins.
Certified emission levels: CO 5.0, HC 0.54, NOx 0.25 g/km.
Models certified under 7KMTX.150DML
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.
B120 · B140 · B150 · DB-H120 · DB-H140 · DB-H150 · DB-X120 · DB-X140 · DB-X150 · DB1BY120 · DB1BY140 · DB1BY150 · EXD120 · EXD140 · EXD150 · H120 · H140 · H150 · K120 · K140 · K150 · S120 · S140 · S150
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.