Has anyone replaced one or both fuel filters on a BX-22 or equivalent? Per the maintenance schedule, they are to be "checked" at 200 hours which seems impractical. The plastic is not too clear! They only cost $5.00 each, and per the parts guy system bleeding will not be necessary. He said just let the fuel circulate awhile before starting and it will self-bleed. If anyone has done it, were any problems encountered? Perhaps the hoses should also be replaced as per the aging concern in the manual.