Posted January 14, 201015 yr Highway hawk fat pipes XVS125 DRAGSTAR Purchased some of these a while back , fitted them with the shop guy and found out the intake manifold on bike was full of holes and split wich we patched up wihth some sealant as a temporary fix , anyway we just upped the needle a bit and it seemed to run fine. Then I went out and bought a new manifold, with this fitted the bike was running out of top end and was a bit of a disaster wich confused me ! My question is this do these pipes need the carb rejetting , cant seem to find any information either way , if so any advice as to what sort of size jet to try the stock one is a 90 Anybody with practical experience of these pipes ? what has worked for you ?
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