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[QUOTE="DualSportr, post: 314766, member: 19592"]
Some of the statements here are a little scary

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A filter or filter seal with a hole in it is basically the same as running without a filter - air will basically travel a path of least resistance - which in this case would be through the gaping hole.

Why not?

I guess compared to the 426, that would be correct, however, the volume isn't really the question here - unless the thing only cranked a few hundred times (but I'd say if it went a couple of rides, it rotated a few more times than that!).

The thing is, like Dale stated, the grit will wear the cylinder walls.  Since this is a coated bore, the CHEAPEST way to fix the problem would be a top end rebuild.

Yes, damage was done (no way around it).  If you replace the worn piston and rings, and clean the (possibly) scuffed cylinder, your poor buddy will probably be able to salvage the cylinder.  If he waits till it starts to smoke, then he may end up spending a bunch of extra $$ on a new cylinder.

I mean, this is a 250F, with a maintenance schedule similar to a two stroke - if he's been riding for a year, it's time for a new top end anyway.

It's not about wasting money, but about saving big money in the long run.
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Which ocean is California closest to?