Setting Up Carbs

[GaryZ]

I saw a Yamaha service video recently that discussed how to set up the carbs on a Venture in your garage. It said to back out the low-speed screws 2 full turns. After syncing the carbs you should adjust each low speed screw for maximum idle. This often requires redoing the sync a few times.

 

When finished they hooked up an exhaust gas analyzer and found one cylinder was set correctly while the others were not. The point was that the analyzer is better.

 

The VR has small analyzer ports on each header pipe. Anybody know of a wide-band Oxygen sensor that might fit these ports?