The_Philmeister

think i found part my problem, its running standard jets and the float bowls and jets are covered in crap

How do all, i purchased a kz550 a few months ago and took it for its first ride today, it appears it may have a fuelling issue, it pops and farts and splutters at the lower end and even cut out, i had to restart on the choke, its got cone filters on and is meant to be upjetted but i havent opened the carbs yet to confirm, theres a couple of things i hope you nice people might help with, in the pic theres a vacuum pipe with a bolt in, is that ok running like that? also there is to white connectors that look like they should have hoses on but theres no hoses, is that normal? Thankyou