How do you change the idle on a virago?
On the virago it is a two-step process as the stop for the idle has to be done first (if it is off – this adjustment usually doesn’t change), then the carbs need to be opened barely off the stop and then synchronized between themselves. …or… you may just still have crud in the tank that is getting into the carbs.
Where is the pilot screw on a virago?
The Virago carbs use a pilot-screw that meters fuel, not air. You can *usually* tell the difference between the two based on location relative to the venturi. If the screw is on the motor-side of the venturi, then 9 times outta 10 it meters fuel. If the screw is on the air-filter side of the venturi, it’s usually for metering the air.
How can I adjust the clearance on a virago valve?
Looking at each valve you can see a nut and allen socket head set screw (4mm). Using a 12mm wrench, loosen the nut (aka polylock) enough to allow the allen set screw to rotate at least a half a turn. Turn the set screw in or out to adjust the clearance to shop manual specs. Lock the 12mm jam nut tight and check the clearance again.
What should I do with my Yamaha Virago?
There are three things that can be done with the carbs. First, the richness of the idle and low rpm mixture (controlled by the pilot circuit in the carburetor) can be set. Somewhat oversimplifying, there is an “ideal” ratio between fuel and air which results in the best and most powerful burn.
On the virago it is a two-step process as the stop for the idle has to be done first (if it is off – this adjustment usually doesn’t change), then the carbs need to be opened barely off the stop and then synchronized between themselves. …or… you may just still have crud in the tank that is getting into the carbs.
Where is the synch screw on a virago?
This synch is accomplished by turning the synch screw located between the carbs in the back. You’ll most likely need to remove the rear carb breather pipe to get to the screw, and move the tank up out of the way a bit using the 30mm socker works great if you have one.
Is the throttle blade on a virago sensitive?
Viragos (like most v-twins) are *tremendously* sensitive to the synch of the throttle-blades in the carbs.
Is there a problem with my Virago XJ750 carb?
And if you use B-12 to clean the slides, the diaphragms are not removable and B-12 will eat a hole really quick, so use care to clean them. Also check under the needle and seat, there is a filter screen that might be clogged with crap. Hard to get parts for those carbs so be careful with the parts you have.