This last fall I started noticing some coolant drippage so I dug into things. Of course, the bike started to drip less than a mile after brimming the fuel tank, and my work schedule insisted a "now or never" sort of timing. I managed to do almost everything through the front. There was a good bit of corrosion on various pipes, but after many hours of slow, painstaking, and laborious (but easy-going -- I'm not in a hurry) effort everything was cleaned up, parts delivered, etc.
I used constant tension clamps like this -=>
https://belmetric.com/clamps/constant-tension/ and I'm very happy with them.
A bit of sil-glyde to put 'em on, on clean aluminum, and no drips or leaks or anything. I have zero worries.
The water pump cover had accumulated large quantities of dirt and little rocks and stuff, and wasn't passing liquid through properly. I also flushed the "V" and the water pump cover thoroughly, and very, very carefully cleaned the water pump cover mating surfaces. I would much rather take 3 times as long and not be hurried and get it perfect than rush the job and regret it later.
The only hoses I did not replace (but ordered) were some of the hoses you can really only get to from the top. Otherwise I did 'em all.
New Honda automotive Type II coolant and a thousand or so miles later not a hint of trouble.
Now I wish I'd not put the bikes away in early November, although tonight calls for an inch or two of snow.
I also ordered some of those fancy hybrid spring/screw clamps, but they are giant and I didn't like 'em. Throughout the automotive industry, OEMs use constant tension clamps on almost all of the cooling system. If it's good enough for the eleven zillion vehicles sold each year it ought to be good enough for me.
Addendum: I ordered the multi-pack *and* some specific sizes. I calculated very carefully the desired clamp size based on both the outer diameter of the item being clamped (incl. hose), some 'squish', and I found a look-up table online for host diameter <-> constant tension clamp size.
