Ivan kit and revisit to cold starting

[NitramA]

Same thing that I found when I was presented with a set of the Yambits float valve units to fit for someone. 

There's a short but distinct pause between the float tang touching the needle pin and when it compresses and the float drops again.  Makes a difference, I believe, hence my preference for genuine Yamaha/Mikuni parts.

You should be OK with using the OE needles in the Yambits seats but if it were me, I'd refit the originals and chalk the Yambits buy down to experience.

One of my favourite sayings ... "Experience is what acquire get just after you needed it".

Depressing but true.  


I’ll have another try tomorrow.


I was reading the Yamaha workshop manual (better than the bloody Antiques Roadshow!) and came across the way they recommend checking the float height. I’ll stick with the method on Pats website but interesting none the less.