internal fuel filters

mohawk miss · Post by **mohawk miss** » Fri Mar 10, 2006 2:05 pm

Coming back from the Canberra ride the bike flooded and died at Narellan. The mechanic thought the vacuum had carked it, but it turned out that both internal fuel filters in the tank had come unglued, and put sediment and such crap through the fuel system.

He assures me that this is actually a fairly common fault with Kwakas, especially ZZR's, but I never heard of this while I was looking around at bikes to buy.

Have you guys heard this? Or had this happen to you?

BTW, its a 99 model ZZR250

chameleon · Post by **chameleon** » Fri Mar 10, 2006 5:04 pm

NEVER! But I wouldn't run a bike or anything, without a good "External" filter. Cheap as chips and I'm sure would catch any crap reguardless if you had internals or not. Do you have an external?

circlework · Post by **circlework** » Sun Mar 12, 2006 7:18 pm

whats an external fuel filter???

chameleon · Post by **chameleon** » Mon Mar 13, 2006 10:46 am

One that is external to the fuel tank as apposed to one integrated inside the tank. Mine is fitted between the petcock and the fuel pump, hidden just under the rear of the tank. I've no experience with internal ones on bikes, only ones in small engines. My Honda mowers have them, they are tiny screens fitted over the fuel outlet in the bottom of the tank. Useless they are.

mohawk miss · Post by **mohawk miss** » Mon Mar 13, 2006 11:39 am

Yes it has an external as well, but once the crap went into the fuel tap it just jammed it open and the fuel went everywhere.

I just wondered if that sort of thing had happened to anyone else, with the mechanic telling me they see 4-6 a month with that particular problem.

Neka79 · Post by **Neka79** » Mon Mar 13, 2006 11:51 am

never ran an external one..never had a problem with it..touch wood...

Gosling1 · Post by **Gosling1** » Mon Mar 13, 2006 5:01 pm

You'd be surprised at the number of Jap bikes that come standard with internal fuel filters......most of them are just a fine brass screen that sits on top of the fuel inlet to the fuel tap........and they do get clogged with all sorts of crap, esepcially on *older* bikes......