I just hit mine with the air gun, I think I need to buy stuff and print off the instructions.
I'm also going to pull the top of one of my carbies off to see if has a jet kit (another current post)
I notice the other day when at low speed (about 10k/h) coming down a slight decline with throttle closed, it sounded like it was only firing on 2 cylinders.
I’m wanting to do my value clearance, what tools do I need?
(sorry for the Hijack)

 

Should never need to use airgun. Just wash in Filter cleaner and re-oil.

If the bike is popping when decelerating it is too lean or there is an air leak in the manifolds.

 

Not popping, well, that depends on what you call popping, feels and sounds like it's running on two cylinders, no pops or backfires.
You are talking about the intake manifolds which would be my inlet boots?