Engine family MAMIC0.15YF1

What this record says

Sold in the US by

Amigo Motorsports, Inc

Engine built by

Sanmen County Yongfu Machine Co,.Ltd

Vehicle category

Highway Motorcycle - Ib (50-169cc)

Certificate numbers

MAMIC0.15YF1-001-R01

The engine, as described on the certificate

The test vehicle Amigo Motorsports submitted for this family (model YN150T-4) carried engine code YN1P57QMJ. In the Chinese engine-model convention that reads as one cylinder, horizontal (flat) cylinder, with a nominal 57 mm bore, QMJ series. Against the certified 150cc that implies a stroke of roughly 59 mm — a sanity check for a piston or cylinder listing, not a published figure.

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 6.5 kW (about 9 hp) at 7,500 rpm, driving through a CVT (belt and variator).

Engine code on test vehicle

YN1P57QMJ

Nominal bore (from the code)

57 mm · implied stroke ≈ 59 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

6.5 kW (≈9 hp)

Rated speed

7,500 rpm

Transmission

CVT (belt and variator)

Sales area

50S

Vehicle built by

Sanmen County Yongfu Machine Co,.Ltd

Test vehicle model

YN150T-4

Filing history and where it was sold

Amigo Motorsports filed one certificate under this family, for model year 2021, sold as 50-state, California included.

The vehicle itself is recorded as built by the same company, Sanmen County Yongfu Machine Co,.Ltd in China — engine and chassis from one source.

Certified emission levels: CO 2.7, HC 0.2 g/km.

Other records carrying the same engine code

Amigo 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:

• LAMIC0.15YF1 (2020)
• NAMIC0.15YF1 (2022)
• PAMIC0.15YF1 (2023)

Other certificate holders whose test vehicle carried the same engine code (10 of 11 shown):

• Yuluo Global Motor, Inc.SYGMC0.15MC12025 · same engine factory
• Yuluo Global Motor, Inc.RYGMC0.15MC12024 · same engine factory
• Yuluo Global Motor, Inc.PYGMC0.15MC12023 · same engine factory
• Yuluo Global Motor, Inc.NYGMC0.15MC12022 · same engine factory
• Yuluo Global Motor, Inc.MYGMC0.15MC12021 · same engine factory
• Yuluo Global Motor, Inc.LYGMC0.15MC12020 · same engine factory
• Yuluo Global Motor, Inc.KYGMC0.15MC12019 · same engine factory
• Yuluo Global Motor, Inc.JYGMC0.15MC12018 · same engine factory
• Yuluo Global Motor, Inc.HYGMC0.15MC12017 · same engine factory
• Yuluo Global Motor, Inc.GYGMC0.15MC12016 · same 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 MAMIC0.15YF1

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.

Avenza Classic 150 · Bellagio Classic 150 · Bello Classic 150 · Boxer 150 · Cruze 150 · Executive Limited 150 · Jax Sport 150 · Largo 150 · Phenom · Polo 150 · Rambo 150 · Rover 150 · SS-150 · Spyker 150 · Swift-S 150 · Warrior 150

Other American badges on engines from the same factory

• Sanmen County Yongfu Machine Co,.Ltd · 150cc2 American brands · 2015–2025