Originally Posted by Fordified
Is the bike EFI or carb? If you're washing the bike before it starts to break up, you may be water logging the air filter. Above 5k, airflow through the filter could start to draw in moisture through the filter which would cause the bike to nose over. Try not washing it for a week and ride it alot and see if it ever breaks up.
EFI
Yes... the air filter is in a place that is suseptible to being saturated with water.
Yes... when it's dirty, at least it runs.