Sure there are other ways that work when it comes down to tuning a motorcycles carburetor. However, there is only "1" true way of checking your work and also adjusting your carbs

For easy, fast and accurate tune-ups I highly recommend using our new EMGO carburetor vacuum gauge set for twin-cylinder motorcycles. This EMGO vacuum gauge set comes with everything as pictured from hose, adapters and twin gauges on a steel fixture

Here at Classic British Spares we use this same set-up to tune twin-cylinder Triumph, BSA and Norton motorcycles here at our shop. For only $64.95 (free shipping in the lower 48) you can have this same set-up delivered right to your door

Great for twin-cylinder motorcycles that feature ports to attach a vacuum gauge (not all motorcycles have this feature). Also great for "universal" applications as not described above... instructions included.