light load surge finally nailed

[rb3221]

Well, after nearly 2 months of my mate riding his busa (That I have been talking about) with out even a sign of a problem the dam surging came back on the way home yesterday so it looks like I will be back trying to find the problem.

donovandon100 ,
yes I did test the fuel pump, I took it out of the the bike and ran it on my fuel flow bench (it dose both injectors and pumps) and the pressure and flow was good.