Weisco Piston Big Bore kit for Yamaha Sr500 motor oil Fits stock air box

Fits stock air box

Product Name: Piston Kit

Come with needle and seat if removable on OEM

NOTE: Full systems with our reverse cone muffler come with a welded on mounting bracket and stainless hose clamp to attach muffler

Need a new Supersprox rear sprocket

Weisco Piston Big Bore kit for Yamaha Sr500 motor oil Fits stock air boxFeatures Pistons come without gasket kit Specs Product Name: Piston Piston Material: Aluminum Alloy Forged Bore Size: 90 mm 90,00 mm Piston Size: +3,00 mm +3. 00 mm Displacement: 499 cc Stroke Length: 84. 00 mm 84,00 mm Compression Ratio: 9,0: 1 9. 0: 1 Engine Type: 4 Stroke Units: Each Fitments: 1976 1981 Yamaha XT 500 1977 1981 Yamaha SR 500 Ships in 4 5 days