well just see a local scrambler bike shop, the have cheap plastic pipes with a build-in valve.... they call "FREEflo" (THE NO SLOP HOSE) they are the best solution I could find so far
cost about £5 quit and available all over the UK
FREEflo Coloured Hoses
and one more source is Products
Hein Gericke in Gloucester used to sale this type.... but others keep this pipes in stock as well in all sorts of colours.
or you buy a aly-valve for inline pipes... get a proper fuel pipe not the cheap clear one.... you need a fuel resisted pipe
on the other hand show up in a KTM dealer shop, they sale a valve-top but not cheap... they are like the one shown at this link... will fit any acerbis fuel cap.
SXS KTM ORANGE GAS CAP VENT HOSE
One way valve vent head to compliment your new billet gas cap.
Price: £6.59 (Includes VAT at 17.5%)
PULSE FUEL CAP VENT HOSE
One way valve vent head to compliment your new Pulse gas cap.
Price: £6.49 (Includes VAT at 17.5%)
The DirtBikeBook Ltd Anodised Goodies
Last edited by spooky; 18 Jul 2007 at 23:06.