US importer / certificate holder
Who actually makes US Yachts International, Inc.?
Across every model year on record (2009–2010), US Yachts International, Inc. engines were built by Changzhou Yamasaki Motorcycle Co Ltd.
- Model years
- 2009–2010
- Engine factories
- 1
- Engine families
- 2
- Models certified
- 1
What the US Yachts International filings say about the engines
Every US Yachts International filing on record is carburetted — 2 certificate rows, 2009 to 2010, and not one fuel-injected engine among them.
The engine codes on US Yachts International's test vehicles —just one across the filings — are led by UYTC-050. The code is stamped on the crankcase and is a better search term than the badge.
None of the 2 filings is a 50-state certification: these were sold as 49-state machines, not certified for California.
Rated power on the record is 1.4 kW (about 2 hp).
The vehicle builder named on every row is CHANGZHOU YAMASAKI MOTORCYCLE 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
Changzhou Yamasaki Motorcycle Co Ltd
Also builds engines for 0 other American brands.
Model names certified under US Yachts International, Inc.
1 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.
FLEXI
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 2 China-engine certificate rows filed by US Yachts International, Inc.. Full provenance and method.