Good evening, 

does anyone know where I can purchase a fuel tap gasket for a DT125A 1974? 

preferably on the UK.

Thanks everyone

Steve 

Yamaha still do them, Steve.

Which one is it you need - fuel bowl to petcock body, petcock to tank or the one behind the lever?

Thanks Alan,

I am after the one behind the lever. When the tap is in the off position it still slows a constant fast drip of fuel. 

I am attaching the parts page from CMSNL.

Yamaha DT125 1974 USA FUEL TANK - buy original FUEL TANK spares online (cmsnl.com)

I managed to get the main valve/gasket (214-24523) from Yamaha, although it had to be back ordered. Both Yambits and Sumo Rubber sell repro (I think!) parts.

There also appears to be an 'O' ring (214-24513) - belt and braces?

Finally there is a wave washer (214-24518).

I have not tried to get the last two parts from Yamaha.

Would you like me to ask my dealer if they can get them, or is that me "nannying" you too much?! 

Alan,
That would be awesome if you could please? I would defo go belt and braces and get all three parts. 
thank you

I'll email you once I've heard back from them, Steve.

214-24523 is still available from Yamaha, but the other two parts are no longer available. They do show on fleabay, but stupidly expensive - maybe generic parts are available?

I did notice when I stripped it that the wave washer was a little flat looking so I just reshapes it a little.