Yamaha - Remote Oil Tank Filter Oil System 646-24251-02-00. Overview. This little filter is one of those parts that gets overlooked until oil flow starts acting up. The Yamaha 646-24251-02-00 Remote Oil Tank Filter helps keep debris out of the oil supply before it moves through the system, which matters a lot on older Yamaha oil-injected outboards. When these filters load up with sludge or contamination, you can end up chasing avoidable oil delivery problems later. Swapping it during routine ser