before yer buy a new pump.....

the pump unit comes apart....
you maybe able to drill & tap the plastic
bottom section to put a brass pipe
tail in with a rubber hose to the
injector...

i have only just put mine back in
after a pump replacement..

Theres a few pump units on E-bay... here is just 3 of them...

http://www.ebay.com/itm/Yamaha-XT660...2fd265&vxp=mtr

http://www.ebay.com/itm/FUEL-PUMP-TA...item418b59fdaf

http://www.ebay.com/itm/POMPA-CARBUR...item4632d949a1

__________________
Harley Davidson..
The easyest way to turn gasoline into noise with out the side efect of horse power...