Thank You for your detailed break down
All very interesting !
I am especially interested since I have a 2013 250 Special edition
which was released here in Asia for the first half of 2013
It is basically the same as the 300 sans slipper clutch
& all the things that increased the displacement
(crank,rods ) + throttle bodies
I wish you had a try with this one too as I am pretty impressed
over the last year. Not to mention I would love to see a detailed breakdown
like you have done here.
It is not all that far off performance wise from the 300 judging from what I read here on the forum & see here in Asia
I would be interested in bumping the cc via bore rather than stroke
as I think this bore to stroke ratio is good & could be even better with
an even higher rather than lower ratio
which was the result of the 300 going stroke rather than bore increase.
Thanks again for taking the time to photo & post all of this info.
PS: Cuong ...Here is the 2013 parts manual online. Thai but understandable thru pics & part numbers
One can see how much of the 300 is there
http://www.kawasaki.co.th/th/catalog/EX250LDFA.pdf
Also if anyone wants the Ninja 300 Parts catalog again in Thai but pics & part numbers
usable
http://www.kawasaki.co.th/th/catalog/EX300BEF.pdf