Hi I have a Yamaha aerox 2013 new shape and I have ordered a yasuni z exhaust the moped is currently fully standard apart from being de restricted and my original plan was to just fit the exhaust but I am now thinking that could be a bad idea as people say it needs to be tuned, please tell me your thoughts but don't take the mess
Yes you need to change the rollers and the spring in the rear poulie and bigger jet in carb. Davidoff
