How To Balance / Sync Throttles

[R-III-R Turbo]

Due to a few requests on my Youtube channel, coupled with a lack of a sticky/central thread on here, I took an hour on rainy Saturday and made this video showing how to balance or synchronise the throttles on the Rocket III.
Hopefully it will be of some use.

 

[idk]

Instructions are also in my signature link.

 

[barbagris]

One of these helps too. Morgan Carbtune - carburetor synchronizer for balancingmotorcycle carbs

 

[Plow Horse]

HeHe I just synced the throttle bodies yesterday. My question is, what should approximate value be for all three. I get that they should be the same or as close as you can. But I see you have a value of 570. Mine was at 630.

 

[idk]

That would depend on how much your bike sucks.

 

[Speedy]

The timing, idle speed, exhaust system, and fueling will impact the idle vacuum (absolute manifold pressure) so there is no way to answer that question accurately. However, 630 is not abnormal for a near stock set-up.

 

[R-III-R Turbo]

One of these helps too. Morgan Carbtune - carburetor synchronizer for balancingmotorcycle carbs

If only you could reach the screws with that instead of having to take off the intake plenum. This job is as good a reason as any to go with pod or Ramair filters.

HeHe I just synced the throttle bodies yesterday. My question is, what should approximate value be for all three. I get that they should be the same or as close as you can. But I see you have a value of 570. Mine was at 630.

Have seen 540 - 670 hPa on mine.. as long as they're balanced, it's good. Unless you got like 900, then you probably got a leak

 

[CrzystghndKC]

Due to a few requests on my Youtube channel, coupled with a lack of a sticky/central thread on here, I took an hour on rainy Saturday and made this video showing how to balance or synchronise the throttles on the Rocket III.
Hopefully it will be of some use.

I just watched it today and its very informative. I also watched the Setting Cam Timing video. If I can make one suggestion the audio is not good and really non-existent on most of the cam timing video. You should look into what happened. Maybe needs to be uploaded to YouTube again.

 

[barbagris]

The timing, idle speed, exhaust system, and fueling will impact the idle vacuum (absolute manifold pressure)

You forgot altitude

 

[Speedy]

Yes, that too.