New Crankshaft Main Bearing And Seal Kit Compatible With 1998-1999 Yamaha Yz125 124Cc 2-Stroke 5Mv

YAMAHA YZ125 2-STROKE MOTOCROSS — 124cc Single-Cylinder Liquid-Cooled (1998-2000):
• Yamaha YZ125 124cc 2-Stroke Single-Cylinder Liquid-Cooled (1998, 5MV Engine Code)
• Yamaha YZ125 124cc 2-Stroke Single-Cylinder Liquid-Cooled (1999, 5MV Engine Code)
• Yamaha YZ125 124cc 2-Stroke Single-Cylinder Liquid-Cooled (2000, 5NX Engine Code)
• Yamaha YZ125 54mm Bore × 54.5mm Stroke 2-Stroke YPVS Power Valve Race-Spec Motocross

SPECIFIC MODEL YEARS COVERED:
• Yamaha YZ125 1998 (Major Redesign Year — New Chassis and Engine Architecture)
• Yamaha YZ125 1999 (Refined 5MV Engine, Steel Chassis Era)
• Yamaha YZ125 2000 (Final 5NX Engine Year Before 2001 Redesign)

NOTES:
• Compatible with Yamaha OEM crankshafts and aftermarket Hot Rods replacement crankshafts
• 1998 represents a major redesign year for the YZ125 with all-new chassis and engine architecture
• 2001+ YZ125 uses different crankshaft bearings (NOT covered by this kit — verify before ordering)
• Quality alternative to expensive Yamaha OEM main bearings and crankshaft seals
• Recommended for any bottom-end rebuild, crankshaft replacement, or seal-out repair
• Bearings prelubed and packaged with waterproof grease; crank seals feature sealing lip designed to reduce crank pin wear
• YPVS power valve system requires correct seal orientation during installation
• 6-speed transmission with reed valve induction