The exhaust header sits quite close to the inside surface of the RHS tank.
Obviously this hot item causes this tank&petrol to heat up, and the radiator&fan on this side will only help doing this.
On hot days, and add slow riding in tech stuff, this sometimes causes the petrol to boil - not ideal no, and this reminds me of my Rade-tank on the 701 which did same.
Oh, yeah, sure, avalanche me with 'you sissie!' and 'speed up man!' comments because of the more cooling wind then... I know, but then again it's
my bike, hmm?
Another result of this constantly heating-cooling process every time I use the bike, and consequently the tank 'growing' a bit every time - yeah, it shrinks then also duh - the original stickers (or whatever you have on there) start to peel their edges.... under which dirt collects of course, so not quite ideal for my
Posing Princess SID!
Anyway, insulating this hot pipe I was going to do, in fact I bought 'asbestos' (not available any more but a modern variant alleged to do the same) woven tape plus some alu-reflective self-adhesive sticker material for this already - the former for wrapping the header with, the latter to stick onto the inside of the tank to protect it from heat-radiation.
But then
@ZK1 started a thread (thank you Squire!) about ceramic coating ....
(here)
https://wilddog.net.za/threads/yz250-2t-build-and-cerakote.288151/page-4#post-5372515
.... so I jumped on the opportunity for changing my mind!
Yeah I know, indecisive me, attention span of a goldfish etc, byt me maar kak ..... but a proper insulating ceramic coating thermally insulates it
waayyy better than what I had planned!
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Such also is more long-lasting as well as less of an eyesore, plus after swimming there's no water left (in the wrapping) to corrode the header.
I'll admit that a
tiiiiiiiny advantage played a role also: I have a small (really small) dent in my header, a souvenir from a Lesotho rocky ride, and this bothered me a bit.
We all know (hell I hope so...) that any coating is best applied to a new, virgin surface ..... so I needed no more convincing that I'd best get a new header for this coating process......
.... which also meant that I'd not be without bike for a while: Zaak can take his time to do his coating magic, and when done I'll just mount it!
So this is where we are now: tomorrow I'll drop off the new header so ZK1 can do what & whenever he pleases, and when done I'll take the tank off the bike, mount it, stick the reflective stickers on and do some other work.
I'll report back on this, of course also here!