Exaust modification
#1
Exaust modification
I asked a few days ago about any problems with cutting out some of the baffiling on my cbr250r. After one response saying no to and getting a few more opinions i did it anyway. I dynoed the bike before the modification at a friends shop it was at 45 whp, after removing all but one section of the baffiling and welding it all back up not only did it sound ridiculous it dynoed at 46.5 whp. I dont think thats bad for a few hours of work. In the lower rpms it pulls better and the revs pick up much easier. Just thought i would mention it.
( P.S. Dynoing a bike it probably the most fun you can have at a standstill )
( P.S. Dynoing a bike it probably the most fun you can have at a standstill )
#2
RE: Exaust modification
they only thing i can ask was, did you get a fuel air mixture graph, just to make sure it wasnt runnin lean, cos every one knows 'they always go the best b4 they blow up'... just a though.... i did the baffle in a 250rr, by just using a 1/2 long serise drill from the flange end and jut drilling it out.... sounded unreal, but needed a half size bigger mains jet..... though we just used some oxy nozzel drill instead... not perfect but worked a treat....
peace
peace
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