It gets worse. The bike is now set up on the dyno and the fuelling is almost sorted but there is a flat spot at 6000 rpms.
This cant be sorted until the emulsion tubes are replaced. Balls!!
Apparently the needle in the carbs sits in this tube; And after 55000Km the tubes have worn into an oval shape meaning the fuel doesn't flow very smooth.
I'm told this is mostly due to the angle the carbs sit to the engine but not sure just yet. We will have to look in to that one
I didn't even know what an emulsion tube was! £27 pound each! dam these 4 cylinder bikes.
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