Motorcycle carburetor synchronous detection pressure vacuum gauge:

It is used to test the motorcycle fuel pump carburetor pressure and whether the motorcycle with 4 carburetor is synchronously tested and debugged during operation.
The full set is as follows
Plastic box 1 440 (L) X 250 (W) X 100 (H) mm
Instrument holder and mechanical pressure vacuum gauge with pressure regulating valve
Oil resistant rubber vacuum tube 4 5 x 8 x 750 mm
There are a total of 17 copper joints, the specifications are as follows
M5 X P0.8 X 99 mm (L) *4
M5 X P0.8 X 169 mm (L) *4
M6 X P0.75 X 53 mm (L)* 4
M6 X P1.0 X 60 mm (L)* 4
Toothless 6 X 60 mm (L) *1 support tube for tube
5. Oil seal spare parts *1 pack
Features:
This group of motorcycle carburetor negative pressure synchronous balance meter is the most economical and widely used carburetor synchronous balance tool for multi-cylinder multi-carburetor motorcycles. It consists of four mechanical pressure vacuum gauges, which can simultaneously The synchronous balance of the four carburetor is measured and debugged, and the carburetor pressure value can also be measured individually. Because the engine is running, the constant air intake of the cylinder causes the pressure connected to the pressure gauge through the carburetor to be unstable. Therefore, the fixed valve connected under the pressure vacuum gauge can adjust the flow in the pipeline as a damping effect. Reduce the pressure gauge pointer to a range that can be interpreted.
Measuring range:
Positive pressure: 1kg/^2
Negative pressure: 70cm/Hg
Measurement method:
1. After the engine is fully operational and the correct idle speed is adjusted according to the standard data, turn off the engine.
2. Connect the rubber vacuum tube to the pressure gauge and press on the elastic clamp.
3. Refer to the motorcycle maintenance manual for each model, use the special threaded copper joint, screw into the carburetor thread, the thread is not correct, do not force it in, the threaded joint must be cleaned before the copper joint is screwed in. Also confirm that the copper joint seal is not broken and screwed into place until it is sealed. Insert the other end of the rubber vacuum tube into the tapered end of the copper fitting.
4. Confirm that the pressure gauge rubber vacuum tube is connected to the carburetor cylinder to be measured and check the number of each cylinder.
5. Activate the engine. After warming up for a few minutes, start to adjust the carburetor synchronization. After initial synchronization, refuel (accelerate) several times. After returning to idle speed, check the pressure gauge and adjust it again if there is any change.
6. Refer to the vehicle's factory data sheet for the negative pressure standard data for the motorcycle carburetor.
Precautions:
1. Please operate carefully to prevent water or oil, dust and other dirt from entering the passage of rubber hose.
2. It is strictly forbidden to fall and impact at the height of the instrument to avoid high temperature, high humidity and sunlight.
3. Wipe the meter with a soft cloth. Do not wipe it with gasoline or solvents.

Specification:
Material: Metal + Plastic
Item Color: Black + Yellow
Storage Case Color: Red
Size: as picture show
Package Weight: 3.5kg

Package includes:
4 * Synchronizer Gauges with Fixed Plate (vacuum)
4 * Rubber Pipes 8*5*750mm
4 * Connectors M5*P0.8*99mm (L)
4 * Connectors M5*P0.8*169mm(L)
4 * Connectors M6*P0.75*53mm(L)
4 * Connectors M6*P1.0*60mm(L)
1 * Connectors 6*60mm(L)
Note:
1. Please allow 0-2cm error due to manual measurement. Thanks for your understanding.
2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.