Yeah I can do that.
Plugs have been very sooty/oily and getting that way very quickly.
Bikes start easily on a clean plug and run for 10 min or so but then start to bog down etc, won't restart if you stall. Whip plug out at this point and it'll be minging.
Plugs in the bikes I ran sans air filter were a more toffee brown colour.
I could do jetting but I've been protesting for a while they are wrongly jetted and supplier denies it. Supplier o think is also on here so not going to say much more about it.