Standard and Big Bore Kits - +3mm Big Bore Comp Kit

+3mm Big Bore Comp Kit

• California Prop 65 Warning: Cancer and Reproductive Harm - https://www.p65warnings.ca.gov/
• Size: Big
• UPC: 714205040296

The Cylinder Works +3mm Big Bore Competition Kit is a direct bolt-on upgrade that increases displacement to 727cc with a 9.2:1 compression ratio for the 2007-2013 Yamaha YFM 700 FG Grizzly 4x4. The kit includes a nickel silicon carbide-plated cylinder, Vertex piston, rings, pin, clips, and gaskets. Designed to look and fit like the OEM cylinder, it requires no additional machining unless otherwise noted. This kit enhances performance, durability, and reduces engine noise. Replacement pistons, gaskets, and ring sets are available separately.