Leaky Bike Carbs - Please Help....

[Streetfighter]

Basically i'v got a 16v DOHC RS2000 engine with bike carbs (FZ750) that was gravity fed and didn't use a fuel pump, made the manifold, put them on and they literally pissed fuel, then fire.. However the car did run. So I went for bigger carbs (1996 Fireblade) that DID run a fuel pump (I'm running a 3PSI Facet Purolator) totally redesigned the manifold to angle the carbs so the floats are flat etc, and to my utter distane, they leak still, not a huge amount but there is excess fuel coming from the trumpets/chokes I'v got a filter in the line that does actually reduce the pressure somewhat, I just need some intelligent ideas as to what I can do to sort this or what the problem could be... Thanks.

[radar tech]

i had to buy a adjustable fuel pressure regulator to stop mine leakin.

[Streetfighter]

Problem is. This has to be sorted in the next 2 days. So ordering parts from companies is kinda out of the question unless they do next day.

[baz105e]

if the new carbs you put on ran on a fuel pump not gravity then you need the specific pump for the bike to make it run anything like right. other than that like said use a fuel pressure regulator (preferably one with a guage) so you can fine tune the pressure

if you just want to get it running half right try using mole grips or similar to squeeze the fuel pipe, this should prevent the fuel from pissing everywhere

[dawesy1700]

agreed, you should get a bike fuel pump, mine use a bike pump and they've never leaked, simples,

[GT_lenny]

agreed, you should get a bike fuel pump, mine use a bike pump and they've never leaked, simples,

 

me too ZX9-R pump lends itself to easy fitting

[glenbo]

you could try the seals on the float needles had to replace mine