848, 1098 and 1198 air filters wearing on airbox

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In addition to the not sealing at the ends issue, I've seen quite a few of these with the air filter worn on the underside by the airbox - the plastic edge is maybe 2mm wide and it cuts into the filter. So now in addition to the rubber at the ends to seal the filter I also add a small piece of stick on foam to the bottom of the air runner flange at the airbox end to lift the filter up a little.
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