Just for fun...I've been advised that I can upgrade my little 250 Nighthawk to a 450cc...anybody every do that? Know where to get a 450cc engine? Couldn't find one on ebay and haven't seen one in the on line stores either.

BFreeman

 

If you have a 250cc now you should try to upgrade to a 600cc
or larger. If you don't, you will get bored with each little upgrade
you do and you will have to buy and sell to many bikes.
I went 360 twin, 350 four, 550 four and now I bought my 3rd
750 four. I have had this 750 for 2 weeks and I already want to
get an 1100cc.