Floor Vacuum Gauges To Adjust Carburetors On A Motorcycle

When i was a kid my father and bj taught me how to adjust a new or rebuilt carburetor by watching and listening to the engine.

Floor vacuum gauges to adjust carburetors on a motorcycle.

The vacuum gauge method generally how it s done in a motorcycle shop and the ball bearing method. I need to take the tops off the carbs and manually sync em i did do a bench sync but i need to fine tune it. The vacuum balancing gauges should be fitted to each inlet tract many japanese machines have either a removable screw or a capped tube on each inlet and the engine re started. I do think though that the cams are out of time.

P1 tools motorcycle vacuum carburetor synchronizer synchronization vacuum carburetor tuning synchronizer carb for honda yamaha kawasaki suzuki vacuum gauge set gs kz 550 650 750 4 5 out of 5 stars 81 58 99 58. So you want to synchronize the carbs on your multi carbed motorcycle. A vacuum gauge is irreplaceable when tuning a carburetor. P1 tools motorcycle vacuum carburetor synchronizer synchronization vacuum carburetor tuning synchronizer carb for honda yamaha kawasaki suzuki vacuum gauge set gs kz 550 650 750 4 5 out of 5 stars 81 58 99 58.

Use the abn carburetor synchronizer and adjustment tool kit vacuum gauge set gs kz 550 650 750 to synchronize the values of 4 carburetors as well adjust them at the same time synchronizer gauges. I did do a starter fluid vacuum leak check and it seems to be in good shape. If you have vacuum gauges try that approach and if you don t opt for the ball bearing method. In setting the carburetor idle point with vacuum gauge best results are obtained by first jacking up the rear wheels one inch from the floor starting the engine and putting the transmission into high gear then adjusting the throttle stop screw until speedometer indicates 7 miles per hour minimum.

Turn the idle adjustment screw s out all the way and then turn it them in until the engine begins to stumble and back off a quarter turn. The carb boots are in excellent shape they were brand new 10 years ago. There are a couple of methods you can use. Finally adjust the engine s idle speed back to the factory specs if it changed.

Popular methods include a tiny pump of some sort built into the carburetor and for the cv carburetors the slide cannot move up due to lack of vacuum on the diaphragm at that moment. Carefully remove the carb tool and reposition all vacuum hoses and plugs. If one or more of the columns rises to a lower level than the others a vacuum leak or some other problem will need to be identified and corrected for your bike to run its best.