Who makes Gk Motor Sports, Inc. engines?

US EPA certification records name Shanghai Jinfeng Motor Co., Ltd. as the engine manufacturer for Gk Motor Sports, Inc. across 2007–2010.

Will parts from another brand fit my Gk Motor Sports, Inc.?

A shared factory and engine size makes another brand a strong candidate, but it does not prove the part numbers match. These machines are assembled from multiple component suppliers, so measure the part you have before ordering a replacement.

US importer / certificate holder

Who actually makes Gk Motor Sports, Inc.?

Across every model year on record (2007–2010), Gk Motor Sports, Inc. engines were built by Shanghai Jinfeng Motor Co., Ltd..

Model years: 2007–2010
Engine factories: 1
Engine families: 5
Models certified: 27

What the Gk Motor Sports filings say about the engines

Gk Motor Sports' filings mix carburettors and fuel injection: 2 rows carburetted, 3 injected. The first injected family appears in 2007; in 2010 the split was 0 carburetted to 1 injected. Check which you have before buying anything on the fuel side.

The engine codes on Gk Motor Sports' test vehicles —2 distinct across the filings — are led by JF-474QE and VM173MN. The code is stamped on the crankcase and is a better search term than the badge.

All 5 filings are 50-state certifications, so every one of these machines was certified for sale in California.

Rated power across the range runs from 16 kW to 72 kW (about 21 to 97 hp).

The vehicle builder named on every row is Shanghai Goka Sports Motor 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

Shanghai Jinfeng Motor Co., Ltd.
Also builds engines for 0 other American brands.

Engine families certified to Gk Motor Sports, Inc.

The engine family number is printed on the emission label on your machine. Match yours here to pin down the exact record.

Engine families with 15 or more certified models
Engine family	Years	Displacement	Models
8GKMX1.31GML	2008	1051, 1307, 970cc	18
AGKMX1.31GML	2010	1051, 1307, 970cc	18

2 of this brand's 5 engine families have 15 or more certified models and carry their own page. The other 3 are covered by the model list below.

Model names certified under Gk Motor Sports, Inc.

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

BMS GKBMS250-2F · GK-250-2F · GK-BMS 1000-2A · GK-BMS 1000-4A · GK-BMS 1100-2A · GK-BMS 1100-4A · GK-BMS 1300-2A · GK-BMS 1300-4A · GK1000-2A · GK1000-2B · GK1000-4A · GK1000-4B · GK1100-2A · GK1100-2B · GK1100-4A · GK1100-4B · GK1300-2A · GK1300-2B · GK1300-4A · GK1300-4B · GK250-2E · GK250-2G · GK300-2A · GK300-2B · GK300-4A · GK300-4B · GKBMS250-2F

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. Based on 5 China-engine certificate rows filed by GK Motor Sports, Inc.. Full provenance and method.