Hi Ferret and welcome to the forum. Your machine was made on or around 1998-2000 but as Blumby said you'll know for sure by removing the carby and finding the 2 digit date stamp just below the manifold.
The engine is a 160cc powertorque 2 stroke.
If it doesn't run the first thing i would do is remove the muffler and check the condition of the piston and rings. If they're in good shape then most other things are easily fixed. If not then you need to weigh up your options based on the extent of the damage, what parts you have available, the amount you're prepared to spend and your level of expertise with all things mechanical.
Report back and let us know what you find. Also a couple of close ups from different angles will help.
