Engine family 8SHNX.300AM5

What this record says

Sold in the US by

Shineray Usa, Inc.

Engine built by

Chongqing Shineray

Vehicle category

ATVA-Meet EPA & ARB ATV Definition

Certificate numbers

8SHNX.300AM5-001

What the number itself says

Reading 8SHNX.300AM5 left to right: 8 is the model-year letter for 2008, SHN is the three-character code the EPA assigned to Shineray Usa as certificate holder, X marks an off-road certification, .300 is the displacement in litres, so 300cc and AM5 is Shineray Usa'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 Shineray Usa submitted for this family (model XY300ST-A) carried engine code LC178FMN. In the Chinese engine-model convention that reads as one cylinder with a nominal 78 mm bore, FMN 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). 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 14.7 kW (about 20 hp) at 7,500 rpm, driving through a 5-speed manual gearbox.

Engine code on test vehicle

LC178FMN

Nominal bore (from the code)

78 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

14.7 kW (≈20 hp)

Rated speed

7,500 rpm

Transmission

5-speed manual gearbox

Sales area

50S

Vehicle built by

Chongqing Shineray Motorcycle Manufacturing Co., Ltd.

Test vehicle model

XY300ST-A

Filing history and where it was sold

Shineray Usa filed one certificate under this family, for model year 2008, sold as 50-state, California included.

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

Certified emission levels: CO 5.3, HC 0.40, NOx 0.29 g/km.

Other records carrying the same engine code

Shineray Usa certified an engine with this code under one other family number — the same engine filed again in another year, or in an off-road and a street version:

• 9SHNX.300AM5 (2009)

Other certificate holders whose test vehicle carried the same engine code:

• Loncin (Usa) Inc.9LNCX0.29A2L2009 · different engine factory
• Loncin (Usa) Inc.8LNCX0.29A2L2008 · different engine factory

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 8SHNX.300AM5

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.

AV-250-STD · AV-250-STI · AV-300-XY · Allroad ATV-250A · Allroad ATV-250B · Allroad ATV-300A · XY250ST-A · XY250ST-B · XY250ST-C · XY250ST-D · XY250ST-E · XY300ST-A · XY300ST-B · XY300ST-C · XY300ST-D · XY300ST-E

Other American badges on engines from the same factory

• Chongqing Shineray · 200cc3 American brands · 2006–2009
• Chongqing Shineray · 100cc3 American brands · 2006–2020
• Chongqing Shineray · 300cc2 American brands · 2006–2007