Along with making sure valves are in spec, you should also be checking to make sure your idle speed is correct, make sure you have a clean air filter and new plugs.

When you’re doing the final part of the synchronizing, are you turning both valves completely off and then turning the screw to get it correct?

What if you can't get it to run that long to get it hot

Drag star carburators use to get dirty easily?

Did you have it turned all the way out or in

Hopefully you're still on this thing looking at your comments how did you adjust your idle screw

Thank u so much for this video! I am a newb and never worked on a motorcycle carb. I bought the digisync tool but had no clue where to hook up.

Looks like Yamaha must have used different carbs on some 650's. My 2005 does not have either one of thos hoses, so where do I connect the vacuum lines?

only video that isnt explained by a retard

Thanks mate. 👍😁

Clear, straight to the point and enough detail to avoid any confusion. Good Video instruction!

Don't you set the idle mixture by vacuum too?

Great video. And this, is why you want a fuel injected bike, boys and girls😂

How do them little valve things go on the vacc lines to the gauages i got a ebay kit and it has plastic tee.peices

Thanks for the video dude!

Is this the same for the vstar 1100?

Dude! I did this with a tube filled with AT fluid and rev'd to 4,500 and sync'd my R1200GSA there. That's where the engine spends most of it's time and where your hands and fingers will go numb if not sync'd. You can fine tune idle using other methods but you spent way too much time on the idle sync' and not cruising RPM where it matters. Consider remaking this but synchronizing at cruise RPM.

Thanks for this. I balanced just like you did, but I lost about 50% of my power. Valves are recently set to spec and carbs are clean. Any idea what I did wrong?

Awesome video bro.

I used to use an oil filled manometer that I made around a slat of wood.  Worked okay but I was a pain if the manometer fell over.  I then made a twin gauge panel. I really like that.