In the fitting of the HRC airtray (should make little difference to setup really as it was running a lidless airbox before) I discovered the RC valves have been lined up perfectly to the marks with the TPS plugged in and cables so loose you can wiggle the butterfly a good 5mm! Which is lucky really as lining the RC valves up that badly would mean at fully open they'd be jammed against the cylinder roof.
This probably goes some way to explaining the quite pronounced jump in power delivery as the RC valves are never fully closed and are opening too far at lower revs.
With this corrected and the airtray fitted the bike now ran like a pile of rubbish, took loads of coaxing at minimal throttle opening to get onto the pipe and feels pretty rich (oiling the pipes slighty, plugs as black as the ace of spades). Which is what you'd expect closing the RC valves more.
Also whilst fitting the airtray I noticed, no red X piece (the bike supposedly has the HRC jet kit fitted and I have a bag with a load of jets and a couple of HRC needles in). Never mind, I've got a spare.
Whilst seeing whats really in the jet bag (just glanced when I picked the bike up) I find I've only got the B needles, a hand full of jets and the 38 slows. Now that's odd, the bike is fairly stock, running normal pump fuel and really should have them (the B needles) in.
So, carbs open.....stock (NSR) needles...sigh. But at least these are '21 carbs and I can get to them.
B needles in, quick test, better, lots better, pulls harder at the top, revs from low down cleanly...nice...maybe too nice, perhaps I'll sneak it up a size or 3
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