Synchronizing the Carbs

[Mase]

I have tried synchronizing the carbs with the carb bank off of the bike.  Using the youtube video from Ray I tried to sync the carbs by looking into each pipe and getting the flap to cover the hole by half.  This is not the easiest thing to do since the hole are very small and getting the flap to cover it just by half still seemed like guessing.

Anyone else sync their carbs this way with success?  Any tips with this would be a big help.

[Pappy!]

Another way to bench sync the throttle blades is to use a piece of copper wire. Any wire for that matter. Insert the wire between the blade and the throttle bore. Just feel for the drag on the wire and get them all close. Works like a champ.

[Rio Wil]

Another way to bench sync the throttle blades is to use a piece of copper wire.

Perfect suggestion........besides the carbs don't give a hoot once they are off idle......don't work too hard at this , it isn't worth it....this adjustment gets way over hyped on this board.

[pancho]

I built a six tube mamometer from a bunch of clear tubing, made the reservoir from PVC pipe and plugged it with stoppers, and used ATF for the fluid and mounted it all on a 5 foot piece of plywood after I went through the carbs last year. $0 investment as all the supplies were just laying around. After a precise carb sync, the low speed drive ability was much better,, you know, doing figure 8's in a parking lot, or just showing off at low speeds. Just off the stop throttle is much more reliable for torque and smoothness with a good carb sync..

[BigBad1]

I did the bench sync but the bike did not run well until I put the gauges on them and re-synced. It was close enough to start the bike and run properly while I did it with the gauges. Maybe I should have had my glasses on.

[Patrick]

It does make the job easier. I use a feeler strip. Then, I'm one of the few that just uses a single plain ole vacuum gauge.

[Attic Rat]

Mase bring her up to Tulsa and I will set them for you.

[Disco]

Heck, bring her two towns west and I'll do it or to the next DFW wrench party we'll all do it (you know how it is - lots of spectators, commentators, hecklers, and layabouts). 

Won't be the same zip code, but will be the same area code.

[Tx Bohemian]

It does make the job easier. I use a feeler strip. Then, I'm one of the few that just uses a single plain ole vacuum gauge.

Yep, me too.

Vacuum gauge, y-splitter, few feet of hose, a couple of hemostat clamps and you're good to go.

[Robert]

Actually sync the carbs is for any speed, any method that does not do it on the bike running is only a rough in. It will be off sometimes considerably and at idle it can make the difference in a consistently smooth idle and help in the smooth transition to off idle. Carb sync should be done at idle and off idle to verify the adjustment made is consistent along all the carbs.