Sportrak - Carburettor or Fuel Injection?


I need to order Spark Plugs, Air and Oil Filters for my 1989 Sportrak 1.5 EL 16v. I need to know if my engine has a Carburettor or is Fuel Injection. I think I have a Carburettor. Sorry to sound like a dummy but how can I know this for sure? Does anyone have a picture of the engine block so I can compare to mine?

I think I've answered my own

I think I've answered my own question! Mine has a circular air filter sat on top, whereas the EFI version looks different.