EPA engine family

Engine family 9FYMC.150FYM

If this code is printed on your emission label, this is your machine's federal record: sold under Fym-USA Group LLC, with an engine built by Guangzhou Panyu Huanan Motors, certified as street-legal scooters and motorcycles.

Displacement: —
Model years: 2009
Models certified: 27
Certificates: 1

What this record says

Sold in the US by: Fym-USA Group LLC
Engine built by: Guangzhou Panyu Huanan Motors
Vehicle category: Highway Motorcycle - Ib (50-169cc)
Certificate numbers: 9FYMC.150FYM-005

What the number itself says

Reading 9FYMC.150FYM left to right: 9 is the model-year letter for 2009, FYM is the three-character code the EPA assigned to Fym-USA Group as certificate holder, C marks a highway (street-legal) certification, .150 is the displacement in litres, so 150cc and FYM is Fym-USA Group'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 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 5.8 kW (about 8 hp) at 6,500 rpm, driving through a CVT (belt and variator).

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: 5.8 kW (≈8 hp)
Rated speed: 6,500 rpm
Transmission: CVT (belt and variator)
Sales area: 49S
Vehicle built by: Ghangzhou Panyu Huanan Motors Group Co.
Test vehicle model: Circuit 150

Filing history and where it was sold

Fym-USA Group filed one certificate under this family, for model year 2009, sold as 49-state (not certified for sale in California).

The vehicle itself is recorded as built by Ghangzhou Panyu Huanan Motors Group Co. in China, while the engine came from Guangzhou Panyu Huanan Motors. Chassis parts and engine parts therefore have different origins.

Certified emission levels: CO 1.7, HC 0.06, NOx 0.26 g/km.

What this configuration means when you shop for parts

Fym-USA Group certified this engine with a carburettor, so the fuel-side wear items are the carburettor, its jets and float needle, the intake boot and the choke. The record gives no carburettor part number — measure the intake bore and the mounting on this engine before ordering.

The CVT behind this engine makes its drive belt, variator rollers and clutch shoes the consumables, so measure the old belt on the Circuit 150 rather than ordering by displacement.

The PAIR valve Fym-USA Group lists on this engine is an emissions part; its hoses perish and are the usual cause of popping on the overrun.

The exhaust on Fym-USA Group's 9FYMC.150FYM carries a catalyst, so a replacement silencer without one changes what this engine was certified with.

Models certified under 9FYMC.150FYM

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.

Circuit 150 · FY125T-11 · FY125T-13 · FY125T-13A · FY125T-13B · FY125T-15 · FY125T-17 · FY125T-18 · FY125T-18B · FY125T-19 · FY125T-20 · FY125T-21 · FY125T-3A · FY125T-9 · FY150T-11 · FY150T-13 · FY150T-13A · FY150T-13B · FY150T-15 · FY150T-17 · FY150T-18 · FY150T-18B · FY150T-19 · FY150T-20 · FY150T-21 · FY150T-3A · FY150T-9

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.