ninjette.org - View Single Post - Got a few tech questions for you masters...

sickopsycho · October 8th, 2016, 11:38 AM

So regarding balancing these things... I noticed that one butterfly valve is the "master" and the other is actually adjusted to match it. What I did to balance them (it was waaaaaay off, with a light behind the carbs you could tell one was WIIIIIDE open and the other was closed). There are tiny holes on both carb walls. These holes line up so that one is completely open and one is slightly behind the butterfly and halfway covers it up. 1 turn of the adjustment screw will either completely cover this tiny hole or completely open it up. I matched the 2 butterflies based on this measurement. Is it scientific? Nope. Will it work? I sure hope so, I feel like they are within a quarter turn of being perfect- but we'll see.

October 8th, 2016, 11:38 AM	#25
sickopsycho One ugly son of a gun. Name: Andrew Location: Raleigh, NC Join Date: Sep 2016 Motorcycle(s): 2012 250 Posts: 167	sorry for all the reports, one more thing So regarding balancing these things... I noticed that one butterfly valve is the "master" and the other is actually adjusted to match it. What I did to balance them (it was waaaaaay off, with a light behind the carbs you could tell one was WIIIIIDE open and the other was closed). There are tiny holes on both carb walls. These holes line up so that one is completely open and one is slightly behind the butterfly and halfway covers it up. 1 turn of the adjustment screw will either completely cover this tiny hole or completely open it up. I matched the 2 butterflies based on this measurement. Is it scientific? Nope. Will it work? I sure hope so, I feel like they are within a quarter turn of being perfect- but we'll see.