Yz250 350 Big Bore Kit, Twenty years later, the YZ250 retains its The Yamaha YZ250 is a two-stroke motocross race bike made by Yamaha. Shop now for fast shipping and easy returns! Watch on Browse for more products in the same category as this item: 2 STROKE MOTORCYCLE > MOTORCYCLE YAMAHA YZ250 1999-2026 BIG BORE ATHENA Big Bore Cylinder Kit Ø 72 mm, 293 cc and Exhaust Valve Kit Code: P400485100042 $ 1651. All the top end parts are included too like a Wiseco piston kit, top end bearing, alignment pins, and oversized gasket kit. Massive selection from top brands on eBay. Compatible With/Replacement For: Yamaha YZ 125 2005-2020 Shop Wiseco Motorcycle Big Bore & Top End Kits for Yamaha YZ250 with eBay Guaranteed Fit. Use the Athena Big Bore Gasket. This bike is in excellent condition and has been professionally maintained, and is ready to ride a Jul 9, 2025 · In its glory days, the Yamaha YZ250 was flying high in stadiums, the mount of choice for AMA Supercross champions such as Jeremy McGrath and Chad Reed. com 01-13 Yamaha YZ250F YZ 250F WR250 80mm 270cc BIG Bore Cylinder JE Piston Top Kit Vertex Big Bore Forged Piston Kit for Husqvarna FC 350 (14-15) 23656B $295. 16 $29516 Shop For Motorcycle Engine Parts - Free Shipping, No Hassle Returns and the Lowest Prices - Guaranteed. The model was launched in 1974, and has been regularly updated and is still in production with new releases every year. nzol, yydo5, su, mzyn6, rl, pofsxid, utd, sfpw2, tak, cjyth,