I've heard people go round about backfire and afterfire so I'll start with it's not coming from the exhauset pipe but when I let off the gas or if I'm just cruzing at low speeds i get backfire/afterfire quite a bit. If I'm excelerating up through the gears no problems. Any ideas, fuel filter, plug, both? I just bought this used in March and I'm not sure what kind of maintenance was done previously.

 

Have you checked the exhaust gasket at the headpipe?

 

No I have not checked that

 

There may or may not be an actual gasket. But you might want to check and make sure it's seated properly.