265 Hours Valve check (adjustment) Timing Chain Tensioner - 2017 Yamaha Yz250FX...

WR450f, Wr250f, ktm250sxf, ktm250sx, ktm250, ktm450, ktm350, sxf, xcf, xc, excf, Yamaha, Honda, Suzuki, pitbike, 2Smoke, 2stroke, 4stroke, BETA, Beta300, mx, Endurocross, Yz250X, Home made, DIY...