First off, I do not YET have a K5 engine to work off of, but I am preparing for an engine swap into my '01 KX250 chassis the near future.
That being said, I will be sending the engine in to get ported and polished and I am wondering if a 41mm PWK carb is too big? I already have a Boyesen rad valve that will be used as well.
I guess what I am asking is what is the best fuel/ air delivery for a ported and polished (stock bore and stroke) for the KX500 engine? Are there any other engine mods that you suggest while my buddy is working on it?
Any help getting me started is appreciated, thanks.
