carb sync

[Guest]

I have a quick question for you guys. I remember reading some where on here that you can adjust your pilot screw setting by using a carburetor synchronize. Is this true? If so how?
Thanks.
1982 gs750tgs750t

[Steve]

Yes, it's possible. The theory is that if you can get the engine to run faster without moving the throttle, it will develop a higher vacuum.

When the pilot mixture is the best possible, the engine will run its fastest (at idle, of course).

Start with a carb sync to make sure all the vacuum levels are proper. While the gauges are still connected, note the vacuum level, adjust the pilot mixture. You might be able to hear the engine speed change a bit, not everybody can do that, but you will be able to see the vacuum level change with engine speed.

Keep in mind that we are talking about very small changes in engine speed here, might be 20 or 30 rpm, so you probably won't see it on the tach.

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