Prokomon 4-Gauge Motorcycle Carburetor Synchronizer Tool - Vacuum Carb Sync Tool for 2 & 4 Cylinder Engines - Perfect for Motorcycle Maintenance & Performance Tuning

Motorcycle Carburetor Synchronizer The Tool can be quickly diagnosed with incorrect timing, stuck valves, leaking manifolds, incorrect fuel mixtures, spark misfires. Troubleshoot spark misfire and poor engine compression. Packing List 1 pcs fuel vacuum gauge balancer(4 gauge)8 pcs vacuum hose8 pcs threaded brass carburetor : 102mm(M6x1.0) Extension x 2pc 52mm(M6x1.0) Extension x 2pc 52mm(M5x0.8) Extension x 2pc 102mm(M5x0.8) Extension x 2pc 4. 4 pcs connector 5. 1 pcs screwdriver Note If you find the needle does not point the zero position.Please don't worried. This gauge is precision.Please open cover by hand and use slot screwdriver to adjust it.It is easy. Note Because of the high sensitivity of the gauge, it is necessary to slowly open the accelerator of the motorcycle. If you open the accelerator too fast, you can damage the gauge. So be careful when using the product . thanks. How To Install Step 1 Connect the hose and gauge Step 2 Connect the connector and the hose Step 3 Connect the other hose to the other end of the connector Step 4 According to the previous method, connect all 4 piece gauges and hose How to Use Place the gauge correctly.The long adapter is equipped with an internal carburetor, the short adapter is equipped with an external carburetor.Grab the throttle give it a couple snap backs，those butterflies kins of back into a seat all right，so you're anapping the throttle it allows me to snap back and kind of rest in a place or in a pocket that they enjoy, and going to start the bike back, check the setting and see if it changed at all if it changed at all no problem make another adjustment and you're going to keep going back and forth until you are happy with it.