4li2k73z   Share your Vital activity on Facebook (More info)
close

Balance OEM Crank?

10/6/2012 11:13 PM

the 125's piston went boom. long story short, sent the cylinder out gonna get the 144 set up with porting. I am also replacing the crank while im at it. Heres the question, is balancing a new oem crank necessary?

10/7/2012 7:51 AM

Would be a good idea since the 144 piston will be heavier than the oem cast piston. the oem crank should be already balanced to the oem piston but that is not always the case.

10/7/2012 8:34 AM
Edited Date/Time: 10/7/2012 8:37 AM

I just asked Eric Gorr the same question. He said the piston he puts in the 144cc is the same weight as the stock oem 125cc piston, so balancing was not nessary. This however was on a yamaha so I dont know if it would apply to kawi.

10/8/2012 10:06 PM

Thanks guys

10/9/2012 2:32 PM

Necessary no, nice to have, absolutely.

My 314cc stroker kit has a balanced crank and it completely takes away most of that 2 stroke vibration.

2013 KTM 250SX stock

2008/ 2013 KTM 250SX. An '08 BUT w/ the wheels, forks, crank, entire top end, carburetor, exhaust system off of a BRAND NEW 2013. Also has MX Tech shock, Hinson basket, hardparts 22mm. This bike is currently FOR SALE. PM please.

Post a Reply to: Balance OEM Crank?

To post, please join, log in or connect to Vital using your Facebook profile Fb_connect_sm