Hey i need bit help with my 07 carb speedmaster,now dome 54k, i had since new with after market pod filter kit and pipes about 30km ago an retuned perfect with correct main jets , BUT now over last week it runs like a pig backfires like hell when its warmed up and when slowing down n sounds like a atom bomb going off then wants to cut out but pull the choke out runs good but with high RPM which aint good cuz have to ride the clutch so she dose not stall and trying to slow down with out stalling is a pain BUT at constant speed over 60k/h she runs perfect, i have had the carby strippped down and was clean as and had compression test and came up strong.
Both leeds were tested with a strobe lite and was constant but only at stand still with high revs.
I love my beast and if any one can help out with this drama of backfiring it would be apprecaited heaps.
Mark
Last edited by markwes; 07/14/2012 2:27 AM.
