“Hi, the adapter hoses were too long to fit in the centre 2 carburettors of the CBR250RR or mc22. A shorter length adapter hose could be supplied for the CBR250RR or mc22 (This should be put on the description of the tool so we know).
I however had other adapter hoses that I managed to fit and thus there was no problem for me. I did notice that the adapter hoses supplied did not all have the same diameter hole inside which could have interfered with the reading. But ultimately, the carburettor synch tool somewhat did the job (close enough). Happy for what I paid for :)”