That "fix" doesn't really apply to fixing the problem the OP has,
which is that the clutch engagement ( or "Bite" ) point is with the lever
too far from the handlebar, and he would prefer it to be closer than the
maximum adjustment point of the stock lever.
Probably the simplest solution will be with after market products,
and there are several available by simply Googling "Trophy SE Clutch Lever" etc.
With regards to air in the clutch hydraulic line, there should of course be NONE.
Tie-ing the lever back part way simply opens the Master cylinder port,
and any air trapped in the line MAY rise up ( or "float" ) through the pipework
and escape into the Master Cylinder reservoir, but where pipes do not run vertically
any air is likely to remain trapped in the system, and the usual process for Bleeding
the system should be followed - using the Bleed Nipple at the Clutch Slave Cylinder,
and operating the Clutch lever while keeping the Master cylinder topped up with Fluid.
If there IS any air trapped in the system, air being more easily compressed
than hydraulic fluid, then this would result in a "spongy" feeling, and the clutch Bite point
being closer to the handlebars, as the air is compressed
before there is enough pressure to operate and disengage the clutch.
