Which Sunyee Sports models have a Chinese-built engine?

What the Sunyee Sports filings say about the engines

Sunyee Sports' filings mix carburettors and fuel injection: 35 rows carburetted, 5 injected. The first injected family appears in 2023; in 2026 the split was 5 carburetted to 2 injected. Check which you have before buying anything on the fuel side.

The engine codes on Sunyee Sports' test vehicles —4 distinct across the filings — are led by 154FMI, LC166FMM, 157QMJ-B2 and 1P63QMK. The code is stamped on the crankcase and is a better search term than the badge.

5 of the 40 filings are 50-state (California-legal); the other 35 were 49-state only.

Rated power across the range runs from 6.2 kW to 10.8 kW (about 8 to 14 hp).

The vehicle builder named on every row is Yongkang Sunyee Industrial Co., Ltd.

Each figure is read straight off the EPA certificate rows; the per-family pages below carry the full breakdown for every engine family.

The factory changed. Here is when.

Other American badges on the same engines

These machines came out of the same factory at the same engine size. If Sunyee Sports Inc. parts are hard to find, these are where to look next — after measuring.

• Chongqing Loncin · 200ccActivmo Auto Co Ltd., Bse Motor LLC, Hensim USA, Loncin (Usa) Inc., SunL Group, Inc.
• Juneng Motorcycle · 180ccAnswer Motor LLC, BMS Motorsports, Inc., Flywing Motor American Co.,Ltd, Kxd Motor, Llc.

Model names certified under Sunyee Sports Inc.

32 distinct model designations appear on this brand's China-engine certificates. Yours should be among them — importers sometimes market a machine under a different name than the one they certified.

H37-125 · HAMMER 200 · HAMMER 200B · HAMMER 200L · HAMMER 200T · Hammer 125 · Hammer 125A · Hammer 125T · MZK-125 · MZK-125R · PENTORA 200 · PENTORA 200EFI · U28 · U58-250 · VENTERA 2 · VENTERA 3 · Y15 · Y21 · Y25 · Y28 · Y33 · Y38 · Y45 · Y55 · Y65 · pentora 110 · pentora 110L · pentora 110S · pentora 125 · pentora UT110 · pentora UT125 · pentora UT125L