Big Bore Exhaust

[Satchy]

not sure if theres a thread on this...if there is i couldnt find it anyway.

Im looking to bore out my exhaust on my yx140.
Just wondering if i can do this myself or if its just not worth screwin around with and should just take it to SAFB for them to do??? unless one of you guys around Adelaide will do it for a bit of cash...


cheers guys

 

[Cactus Jack]

You can only open out the header flange so that it's bigger than the port evenly all the way around ... IF your pipe is only skinny , you'd be better of buying a stepped header big bore pipe ...

 

[Satchy]

yeah id buy a big bomb exhaust or something similar...