Thanks. Any thoughts on replacing it with something like this?It will keep doing this until you replace the in tank filter. There is a blockage that isn't coming out when you clean it and after a lil bit of riding it will fall back into place and you are at square one. I am positive this is your problem I have dealt with this before same thing and the only cure was a new filter.
NEW Intank Fuel Pump 2000 2005 Kawasaki ZX 12R ZX12 ZX1200 Ninja EFI | eBay
The alternative may be getting a whole new USED assembly for around $100. I'd rather avoid the cost of replacing the whole assembly with new.