If you like Ricky, use my colour code system for marking bits from each cylinder
I use coloured cable ties
One use red...remembered by 3 letters each word, one red
Two blue, rhymes and blue has one more letter than red
Three green, both got ee and green one more letter than blue
Four yellow coz yellow one more letter again
Cable ties great for quick labelling with dirty hands or gloves, degreaser won't disolve as can marker or coloured tape. Great to tie to rockers, around HVLA, marking posts on dizzy caps and both ends of ht leads or even just both ends of vac tubes to be disconnected for tear down
I add a white tie for inlet coz white is clean like inlet
Black for dirty exhaust bits
So a rocker with a blue tie and white tie is #2 inlet