Bill and Brandon's Yamaha YFZ450 quads were running the Merge Racing Technologies ALJ (Adjustable Leak Jet) and APS (Accelerator Pump Spring) to keep their machines running in what is the most grueling off road series in America. The ALJ gives the guys the ability to quickly adjust for all conditions, improved throttle response and no bogging of any sort. The APS eliminates any "backyard" tricks on the AP spring for a low price.
You can get the exact same part that "Wild" Bill and "The Rook" relies on at your local dealer. All the information you need on the ALJ and on all of Merge's revolutionary products can be found at mergeracing.com. Merge is distributed by Tucker Rocky in the USA and Motovan Distributing in Canada.
Steve Matthes 805-377-2781