2003 Kawasaki 1100 STX DI (2-stroke) — Should You Buy One?
Typical asking price: $1,500–$3,800. There are 3 high-severity known issues you need to know before handing over a check.
Kestrel Take
A direct-injection two-stroke Kawasaki runabout — quick and cheap now, with the DI fuel system as the make-or-break. When the direct-injection system is healthy it's great; when it's neglected it's a frustrating project. Compression, the DI system, and corrosion are the inspection.
Known Issues for the 2003 Kawasaki 1100 STX DI (2-stroke)
Ranked by wallet impact. These are documented, recurring problems — not freak accidents.
The Ficht/DI-style system is powerful but complex and expensive to sort when neglected; verify it runs cleanly with no fault codes.
Repair cost range: $400-$1,800
Verify compression and rebuild history.
Repair cost range: $400-$1,500
A 20-year-old ski can be heavily corroded; inspect closely.
Repair cost range: $300-$2,000
DI-specific and older Kawasaki parts are getting scarce.
Repair cost range: Reflected in downtime
Walk-Away Red Flags
- ✗DI fault codes or rough running
- ✗Low compression
- ✗Heavy corrosion
- ✗No service history
Good Signs
- ✓Clean-running DI system
- ✓Good compression
- ✓Freshwater use with records
Found a specific Kawasaki 1100 STX DI (2-stroke)?
This page covers what goes wrong on the 2003 Kawasaki 1100 STX DI (2-stroke) in general. The Kestrel report covers this specific car— the asking price vs. market, the photos, the seller's description, and a BUY / NEGOTIATE / WALK AWAY verdict with a negotiation script.
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Known issues on this page are based on documented owner reports, NHTSA complaints, class-action records, and manufacturer technical service bulletins. Individual vehicles vary. A pre-purchase inspection by a trusted mechanic is always worth doing.
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