Synchronizing carbs on a 120

[vogelm1]

Just picked up a Morgan Carbtune and plan on synching the carbs on my '07 Vector GT. See there are several threads on doing the 4 cylinders - just wondering if the process same...does the adjustment screw cause one carb to go up/other to go down like on a 150? Or from my quick look under the hood, it appears that there are two screws, one for each carb #2 and #3.

Also, what do you do with the vacuum lines once you disconnect from the carbs? I assume the engine will quit running once the carbs run dry because the vacuum lines run the fuel pump? Thanks guys!

 

[rxrider]

Without reading the service manual I assume the center carb is fixed and there is an adjustment screw between carbs 1-2 and 2-3 to adjust the butterflies in carbs 1 and 3 relative to carb 2.

I use the Morgan CarbTune when syncing my turbo RX-1. If you like I could help you out on the procedure. You may need the service manual, shoot me a PM with you email address.

Jan-Ove
rxrider

 

[rxrider]

You could add a few T's and send the signal both to the pump and the Morgan Carb tune, should do the trick

 

[vogelm1]

Thanks for the reply. There was a rubber vacuum plug on the chaincase side carb which I assumed was the reference. The other two carbs had vacuum hoses leading to the fuel pump...I just pulled those and left them disconnected figuring I could get carbs synched before they ran dry. Seemed to work just fine - had plenty of time to adjust and get everything just right.

 

[rxrider]