SLOW TAKE OFF

[Triesandluth]

I see,  just .2mm larger.  I suppose it would retain the power of the fifty,  probably not a noticeable difference. I guess the machinist would just bore the cylinder. 

[SUPER 9 MANN]

That would be a 70cckit, the most popular.  I've put one on mine.  Not too hard.

was that just a carb swap

[Triesandluth]

was that just a carb swap

We had come to the conclusion that there is a just slightly larger piston  that you can get and bore the cylinder to match it. 
The kit I was speaking of was a cylinder kit that comes with piston,  rings,  cylinder,  head, etc,  that makes the scoot 70cc. There are a few out there,  mine is cast iron,  there's aluminum ones as well. 

[Triesandluth]

MY NINE all of sudden is boggingdown off line and not revving up to gear . revs hanging in 5000-6000 range. I thought it was cvt issue so swapped belt clutch and bell . it did improve 10% but still not good. now it picks up but very extended and long. I am thinking of checking autobystander would this be the logicial next step? bike was ripping a few days ago. gotta fix today daily rider. stock except for aftermarket pipe and upjet to 95

Any luck,  mroc?