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Old April 28th, 2014, 03:59 AM   #26
Ninjinsky
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Name: Paul
Location: UK
Join Date: Apr 2014

Motorcycle(s): Ninja 250, Yamaha RS200 (classic)

Posts: A lot.
Quote:
Originally Posted by skrymir69 View Post
I had the bike all apart so I adjusted the valves. I went ahead and rebuilt the carbs. One of the float valves had a big piece of junk in it. Also the PO had the mixture screws about 5 turns out instead of 2.5.
Everything is back together but I am going to pick up a couple of vacuum gauges so I can sync the carbs, then adjust the mixture.

Does anyone know what vacuum range the gauges should be. How high is the vacuum on this bike 15PSI ?

Thanks again
As I recall mine were in the 10 inHg range certainly not very high on the gauges (davida)
If everything is in order then your aim is just to balance the gauges rather than measure an actual vac level. Signs of trouble are things like one needle steady and the other trembling. (I am assuming that while they were off you set the throttles to more or less balanced by eye)
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