Fodens.

Help please,on you tube,there is a clip of a foden 2strok. 8 wheeler on road test,it lasts about 8 mins.
I noticed very quick changes on the main box, question!! Is it syncro box?? And was/is he playing to the Camara?
I can imaging a hard noisey days work off that’s the case!
I’m not computer savy and unable to put a link up, thank you for any help.