there is an article on pats site about linking the carbs using the balance pipes on the intakes, I have done this mod, at first I fitted the pipes linking 1-4 and 2-3, now I have done the link all 4 together, at first I used the 5mm t pieces from Halfords but as they are small I ordered some proper 5mm fuel pipe ones off eBay, they are off a vw. with the Halfords ones I had the vibration at 3k where using the vw ones the vibration virtually disappeared. I know one thing at 6k revs the front wheel comes way up under power where it never did before, I don't know if fazer thous do power wheely much, mine has never just a small one, so the question is after ivanising do the fazer pick up its front wheel more or are they not prone to big power wheelies?