Hi all. Just had the petcock off my CBR1000F and noticed that the gauze on one of the stick-shaped strainers is slightly damaged. I'd like to change it if that's possible without buying a complete petcock. Does anyone know if those strainers are available and can be refitted separately? It's the reserve strainer (not the main feed one) so it's probably not the end of the world if it's not replaced, but I'd feel better knowing for certain none of the gauze was going to find it's way into the carbs.

 

Gonna have to get creative. Here's some bulk screen you can use to fashion your own filter (I'd use 100 or 150 micron stuff).


That stuff is nylon. If you prefer stainless, here ya go:

 

That's a good "fixit". I think I'd prefer the longevity of stainless steel but wonder if there'd be any risk of "preferential corrosion" of the tank material due to the insertion of a different metal - maybe that's why plastic was originally used(?). I've seen elsewhere on the forum that people have used an additional inline (paper?) filter on some models, but is it possible on a CBR1000FM knowing it has a vacuum operated petcock and gravity fed fuel system?

 

Not with a fine filter. Only 100 micron and up (and 150 might be the real way to go here), and most inline filters are 60 micron and down. And you have to find somewhere to put it, and so many of them are just too big.

If I were in your shoes, I'd probably go with the 150 micron nylon screen and some JB Weld and see what I could rig up. Stuffed inside the tank, neatness is secondary to functionality.

 

Yep. I hear all you say. I'm conscious that space is very limited for an inline filter. I'll probably go down the same line as you suggest with a nylon screen. And you think 150 micron is best?

 

Yep...that's the way I'd go. All these filters simply keep the largest junk out of the carbs. With a fuel pump you could certainly go a lot finer and even add a 40 micron filter between the pump and the carbs, but motorcycles with gravity feed are intentionally simple, and if that means pulling the carbs off every couple of riding seasons to scrub out the gunk that may make it into them, so be it. We trade simplicity for the possibility of a bit of additional maintenance.