Don't want your spirit to be here. Spirit don't bring wallet rite? You datang belanja TT la

Kidding la, if you happen to drop by KL, do let us know so we meet, I'll buy TT then
Anyway, regarding engine cover, there are NO actual answer to anyone, anywhere, anyhow. Simply because it DOES NOT belong to the engine. The main purpose was meant for decoration, whether you like it or not, that's the ONLY function it has. Please find below technical argument useful.
1) Sales assistants always claims it has the function to channel heat from the rocker cover mounting. My argument is, the screw itself is NOT titanium alloy(not effective heat conductor), and plastic does not take heat well, let alone using it as a heat sink? Either you heat up the plastic, melt it or break it.
2) Sales assistants said, due to the AFM produce massive noise, international emission standard does not allow that amount of noise for street cars, and therefore car manufacturer purposely spent millions of dollars to designed this piece of shit to insulate your AFM noise. One fine day I took off my engine cover, me and wifey drove it few days, nobody notice it so I kept quiet. Until I open the bonet and check engine oil, wifey come and make noise said its ugly lar, noise lar, car will not function properly la, car become slow lar, high petrol consumption lar, engine hot lar, worse is... she said stray dogs and cats could go into the engine...

My argument is, the plastic cover has been stripped out for several days, nobody notice it UNTIL they see it and all sort of REASONS of existence came up to support the placebo effect of the plastic cover.
3) Keep warm for the rocker arm/fuel rail/intake manifold during
WINTERTechnically, the above 3 REASONS are the only reason they put a plastic cover on the rocker cover. As for dust collection, like it or not, with or without the plastic cover, your rocker sparkplug rail will accumulate dust. If you will not clean it, it will not clean. If you have a plastic cover, you'll have to clean the cover, open up and clean the rocker cover. Unless you're ignorant enough, just leave the dirt stuck at your rocker cover and continue polish your plastic cover.
A good read
hereI personally like it WITHOUT the cover, but to each their own.
Jangan la, nanti orang ingat gua ada "special interest" Ok?! I don't buttseck people like those someone

I'm asking for the TT location. Datang la TT nanti.
That's the petrol station make me put a plaster on my injured poor BLM. Btw, not
ESSO meh? Thanks for direction.