Attention Kawasaki KLX owners! I'm parting out a complete 2009 Kawasaki KLX300 electric-start engine upgraded with a premium B&B Cycle Restoration big bore kit and piston (cylinder will need replating and you'll need a new piston): $100 w/piston.

This engine is based on the reliable air-cooled KLX platform, making parts highly interchangeable with related models like the KLX250 (1994-2007), KLX250S (2006-2020), KLX300R (1997-2007), and even some cloned engines like the Loncin YF300.

Engine components only—no frame, wheels, suspension, or other bike parts available. All parts are in good working condition unless specified (e.g., minor wear on high-mileage items like the clutch). This setup delivers smooth power for off-road, trail riding, enduro, or dual-sport applications. Ideal for rebuilds, upgrades, or repairs on compatible Kawasaki dirt bikes. Prices start at $20.

Available parts include (but not limited to):

• Cylinder and Piston: B&B 351cc big bore sleeve, piston, rings, pin, and circlips—perfect for KLX250 to 300cc/351cc conversions. $100
• Cylinder Head and drivetrain/Valves: Complete head assembly with cams, valves, springs, and rockers—great for performance builds. Like new cylinder head: SOLD
• Clutch Assembly: Plates, basket, and hub in solid shape. $100
• Ignition and Electrical: Electric-start stator, rotor, CDI, coil, and wiring—plug-and-play for electric-start models.
• Oil Pump and Cooling Components: Pump, filter housing, and related hardware. $20
• Transmission and Gears: not available
• Other Internals: Gaskets, seals, bolts, and miscellaneous hardware (base, head, etc.).

Check the photos for details or message me with the specific engine parts you're looking for—cylinder head, big bore kit components, crankshaft, etc. Fair prices starting low, and I'm open to bundling multiple parts for a better deal (e.g., full top-end kit or bottom-end assembly). Buyer pays shipping from [your location]; I can quote USPS, UPS, or FedEx rates. Or you can pick up in Mapleton, UT.

Search terms for easy finding: Kawasaki KLX250 engine parts, KLX300R big bore upgrade, KLX250S 351cc kit, B&B Restoration cylinder, KLX electric-start motor, dirt bike engine rebuild, off-road motorcycle parts, KLX300 compatible components, Loncin YF300 engine swap. KLX, KLXSM, KLX250SF, KLX300SF, KLX300SM, KLX-SM. This is a KLX engine, aka KLX motor.

Don't miss out—grab these high-quality OEM and aftermarket parts before they're gone! Serious inquiries only.