Used OEM parts for the Kawasaki Eliminator 125 (BN125) are available at Sun Coast Cycle Sports. Produced from 1998 through 2009 for the US market, the BN125 is an entry-level cruiser powered by a 124cc air-cooled single-cylinder engine with a carbureted fuel system. Used extensively by the Motorcycle Safety Foundation for beginner rider courses, the Eliminator 125 features a low 26.8-inch seat height, lightweight construction, and classic cruiser styling. All parts are individually inspected, photographed, and shipped from Florida.
Eliminator BN125 generation and parts compatibility
The BN125 was produced as a single generation from 1998 through 2009. The 124cc air-cooled SOHC two-valve single-cylinder engine received minor updates during the production run: a Keihin PWK28 carburetor replaced the original unit, and a six-speed gearbox was introduced in 2005 (replacing the original five-speed). Body panels, frame, suspension, and most electrical components remained consistent across all model years, though the transmission change means some gearbox internals are not interchangeable between pre-2005 and 2005+ models.
The Eliminator 125 does not share its engine with any other US-market Kawasaki model. Its 124cc single-cylinder is a standalone design unrelated to the Z125 Pro, Ninja 125, or any other Kawasaki powerplant. The BN125 frame and bodywork are also unique to this model.
The BN125 is not related to the modern Kawasaki Eliminator 450/500 (2023+), which uses the Ninja 400/500 parallel-twin engine. No parts interchange between the BN125 and the modern Eliminator.
Common Eliminator BN125 failure points and replacement parts
Carburetor issues: The BN125's single carburetor is prone to varnish buildup when the bike sits unused, which is common given its role as a training and occasional-use motorcycle. Carburetor rebuild kits and complete assemblies are the most frequently requested parts.
Crash damage from training use: Many BN125 units served as training school bikes and were dropped repeatedly by beginner riders. Levers, mirrors, turn signals, foot pegs, and exhaust pipes are the highest-volume parts, with many units showing cosmetic damage from multiple low-speed drops.
Battery drain: The small battery drains quickly during storage. Battery replacements are common, especially on bikes that sit between riding seasons or training course sessions.
Chain and sprocket wear: The lightweight drivetrain wears relatively quickly, particularly on training bikes ridden aggressively by inexperienced riders. Chain and sprocket sets are routine replacement items.
Charging system: The BN125's small alternator and basic charging system can struggle to maintain battery charge, especially on units with aftermarket accessories or older wiring. Rectifier/regulator replacements and wiring harness repairs are common on higher-mileage machines.
Seat deterioration: The BN125's stepped seat foam compresses and deteriorates on heavily used training school bikes. Complete seat assemblies are frequent parts requests for units being reconditioned for continued training or personal use.
Commonly replaced Eliminator BN125 parts
- Carburetor assembly and rebuild kit
- Levers, mirrors, and turn signals
- Exhaust pipe and muffler
- Battery
- Chain and sprocket set
- Seat assembly
- Headlight and tail light
- Foot pegs and controls
Frequently asked questions
Q: Are all BN125 Eliminator years interchangeable?
Most parts interchange across the full 1998-2009 run. The primary exception is the transmission: the 2005 update from five-speed to six-speed means gearbox internals are not compatible across this boundary. Engine externals, bodywork, frame, electrical, and most components are shared across all years.
Q: Is the BN125 related to the modern Kawasaki Eliminator?
No. The modern Eliminator 450/500 (2023+) uses the Ninja 400/500 parallel-twin engine in an entirely new chassis. It shares nothing with the BN125 beyond the Eliminator name.
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