1 reply a few things to note report this image i ve been busy this last year building a prototype carb sync tool and i d love to introduce it to you home made carburetor synchronizer manometer carb sync diy tool turned into nc35 carb syncing discussion now that we have calibrated our meters it s time to start the carb sync make sure the engine is idling properly and read the vacuum level on carburetor image for larger version name 162119922053 jpg views 7177 size 77 4 made a tool about 10 years ago diffeial gear oil in clear tubing used it for years syncing zrx in line 4 carbs worked well for the vtr also name img 20160514 193352 662 zpsd6273216 jpg views 108 size 88 9 kb made a tool about 10 years ago diffeial gear oil in clear tubing used it for years syncing zrx in line 4 carbs worked well for the vtr also i built mine in about 2 hours cost 20 i bought the motion pro 5mm sync adaptors for 12 from my dealer i used straight 50w green oil from my harley this is a cool combo pack with fuel bottle while not necessary you will find it much easier to make the adjustments on the carburetors if the chrome carburetor guards on each side are removed details about carb sync digital 4 channel vacuum gauge motorcycle carburetor synchronize 5 it s all done with computers these days but dial gauges do nearly as good a job er too email details mercury free carb sync tool img made a tool about 10 years ago diffeial gear oil in clear tubing used it for years syncing zrx in line 4 carbs worked well for the vtr also when you are finished adjusting all the carburetors to your satisfaction shut the bike off and allow it to cool you don t want to burn your fingers bout to clean these dirty ass carbs it s my first major diy job on my 07 v star 650 any veteran tips thanks in advance attachment 161992 free photo hosting there are 3 tucked under the carbs at the rear of bike side they re just recessed phillips s you do not need an extra long driver to reach them carb synchronizing tool picture of attach the balancer to the motorcycle large image extra large image made a tool about 10 years ago diffeial gear oil in clear tubing used it for years syncing zrx in line 4 carbs worked well for the vtr also professional fuel vacuum carburetor synchronizer carb sync balancer adjustable for how to sync carbs on a ninja zx7r connect the 4 s from the carb synch gauge to the 4 carbs vacuum s using the tubing that came with the gauge and any needed connectors image titled synchronize motorcycle carburettors step 5 carb sync tool archive suzuki sv650 forum sv650 sv1000 gladius forums carb balancer re jets balancing vacuum gauges