CyberPoet's preference: Morgan CarbTuneII (shown here in action):
|Synchronizing the carbs :
FOR VACUUM DIAL GAUGES: Caution: do not run dial gauges without the in-line shut off valves. Start with the valve closed, open slowly just until you stable reading.
|I bought a 4 gauge system ( 1 wasn't functioning properly )
so i just use 2. After removing the vacuum caps and attaching the hoses & reclaiming the carbs - i close off the plastic inline clamps.
( the vacuum line off carb #4 is larger than the rest so you will have to reduce that line to connect it to the gauge - any auto parts store will sell a little plastic part that does this.
|I have found that it's easier to unbolt the metal frame that is attached to the airbox. then loosen the carb clamps on the engine side and rock the carbs and airbox in one piece to the rear to gain access to the vacuum plugs.|
|The vacuum reading is not important - just that they are all equal
Once they are all reading the same shut down the bike and remove the sync gauge and reinstall vacuum caps & clips ( which means disconnecting the carbs again ! ). reset idle speed.
(sorry about the blurry pix - but you get the idea)