YEIS mounting point on frame

[callum123]

Hi all, have just recently been rebuilding my bike, just refitted the engine and for some reason cannot work out where the YEIS chamber bolt any advice would be great. Thanks

[Calum]

What year and which bottle?

Early models only had the YEIS that goes into the inlet manifold.

Later models had that ones that go into the carb boot.

I don't recall them mounting to the frame however, it's merely attached via the carb inlet and the carb boot.