TT500 fuel tap

[Colin Jay]

The fuel tap on my '76 TT500C is leaking from around the on/off level. I have tried a couple of my spare fuel taps and they all leak as well. Obviously the rubber valve seat has hardened and nolonger seals. The parts book that I have does not list the valve seat as a seperate part and only lists a complete tap.

Does anyone know if the seat from any other Yamaha fuel tap will fit, or if there are any other sources for the valve seat?

[mick25]

I've had tts for 26 years and they all leak at times or all the time.
When mines been sitting for a while it drys out but after a while when its running it stops some times ?
But saying this I've had new ones leak does your head in after a while .
So I run a Yamaha one i got from Ebay second hand and they are great no
Leaks they are more smaller than the org Tt one but not sure what yz that are for , i say early yz.

But I have a brand new xl185 1979 fuel tap that fits the tt500 tank they work spot on to and they have a reserve on the tap  you can get after market ones on Ebay or brand new ones .
I would post photos of both fuel taps I'm running but can't load pics.

[TT5 Matt]

Slob
try soaking it in wd40 for a few days,the fish oil in that stuff might make the rubber swell abit taking up the gap, if not buy a new tap from a A/B or C model yz's. use an old can thats got no gas left in it

[PaulM1976]

Just get either a rebuild kit or an entire new tap from Kedo Parts Aus - Mick from Valley Motorcycles in Raymond Terrace is the man.