If you wish to undertake auto repairs to your Hyosung Cruise II 125 then it is usually a good idea to have a Workshop Manual to use as a reference if you want to know tips to take off a certain part including Exhaust and install it again accordingly.
Hyosung Cruise II 125 Workshop Manuals gives you distinct diagnostic guidelines on your car so if something is wrong it will help you discover what the situation is and some ways to resolve it. After that you can assess if you can do this on your own or if ever the job is simply too big you could make a booking for your Cruise II 125 in to a nearby repair garage.
Hyosung Cruise II 125 manual