Review on MC-400 Fuel-Tool Check Valve Repair Equipment by Jason Ortiz

I cleaned the bottom o-ring groove and then deformed a set of 5 of these o-rings. They don't fit completely in the groove, much like oversized o-rings. The dealer does not replace or sell O-rings, only replaces the entire assembly. There's a reason for that, it's almost impossible to put the bottom o-ring back in place. I wasted my time and my bike has yet to go to the shop with a few missed riding weekends. Don't waste your time with this.