I also recently changed brake fluid on my VFR (05 ABS) and I also did not manually actuate the SMC. I connected tubing to rear caliper center/inner nipple and just kept pressing the rear brake pedal and it pumped fluid all the way through and flushed out old fluid/flushed in new fluid (the rear fluid reservoir under the seat was going down too and I kept topping it up).
If the SMC cannot push new fluid through, then how comes fluid was being pushed through to the rear caliper center nipple when I kept pressing down on the rear brake pedal?
The only nipples I did not touch were the two Proportional Control Valve nipples under the seat. I just did all the nipples on the calipers front and rear.
Just curious as to what happens when I don't touch the PCV nipples? In any case, fluid was definitely flowing through all the way to the rear caliper center nipple when repeatedly pressing down on rear brake pedal, so that must have been coming through from rear reservoir to SMC to LPCV to rear caliper center nipple. But definitely would like to know more because if there is definitely something that I missed then I would like to re-flush my brake fluids again and start over properly...
