61X Stock Pop-off Spring

[mikidymac]

Finishing up my 701 rebuild for my 650 SN swap.

I just wanted to confirm on a stock 61X/61X the arm spring should be a 115 gram?

Been searching here and get answers of both 115 and 95. It appears that the Yamaha number should be a 115 but they don't really say.

Thanks.

 

[Mike W]

If it has a stock pipe then it takes a 115 gm spring.

 

[mikidymac]

Thank you! Yes, stock pipe and carb.