– Kisbeibi Motorcycle Vacuum Gauge, Vacuum Balancer Gauge, Professional Vacuum Carburetor Carb Synchronizer Motorcycle Accessories Durable 2 Cylinder Gauges Kit(size:15x10x1.8cm)

I bought a much more expensive set of gauges and if honest the response from them was rubbish, hardly any movement and would stick at different resting points, these are solidly much better, nice movement and immediate response. Definitely better for body sync. Outstanding value for money imo.

Looks good, unfortunately useless as gauges not dampened, impossible to get reading

Good straightforward set of vacuum gauges, complete with hose and bleed/connection valves. Function as expected and both show same pressure when tested on the same unit. For the price they are very good. Feel slightly cheap in places but work as they should.

Gauge quality ok, one of the small valves were bypassing so had to strip and reseat the sealing o ring and worked ok after that

This set of gauges seems to only come with one of each size of brass adapter tube. As the set has 2 guages, I expected there to be 2 small and 2 large adapters, therefore I was unable to use it for its intended purpose on my motorcycle. If it had 2 sets of tubes, then it would have scored much more highly. Something the manufacturer can easily remedy.

Only got round to using and it's junk totally out of calibration, totally unless, and just out of 30 days, and can't seem to return or get a refund! Amzon starting to feel like a rogue trader, not asked if a product goes faulty after 30 days, Ai chat sending me in circles. :-(

These gauges are in my opinion decent enough for the home mechanic messing about with their own bike but the gauges are not dampened and give a really jumpy reading so it’s a bit hit or miss if you get a decent balance between cylinders and the bigger the bike the bigger the bounce, the whole kit is priced just over £20 so to be honest value for money on this kit for what it does is really pretty decent👍😁

I youtubed how to do my bike first, essential. You need a vacuum device to make the fuel tap work also, I used a syringe. Before you start have some step up/down connectors available because the taps are too small to seal the pipes coming from the carbs (sv650) after getting everything sealed it was quite simple. Make sure you swap the guages around to check the same readings