WORKS CONNECTION ENGINE PLUGS YAMAHA YZ250F 14-25, YZ450F 10-22, YZ250FX 15-25, YZ450FX 16-25, WR250F 15-25, WR450F 16-25 BLUE Billy Bolt Ratio device can be adjusted

Ratio device can be adjusted in 4 easy steps

SX 250 (07-09)

Pro Circuit Thermostrips come in a package of three so you can monitor the running temperature on your motor

(MPN): 101223

WORKS CONNECTION ENGINE PLUGS YAMAHA YZ250F 14-25, YZ450F 10-22, YZ250FX 15-25, YZ450FX 16-25, WR250F 15-25, WR450F 16-25 BLUE Billy Bolt Ratio device can be adjustedPrecision machined from 6061 T 6 aluminum Simple positive installation with an Allen wrench Replaces the stock plug Polished to a mirror finish prior to anodizing resulting in a brilliant look Laser Engraved WC logos Available in Blue, Red, Black, Orange or Silver Made in the USA