Rev the engine six or seven times before coming to a complete stop. Rev it all the way to the edge every time you stop.
well if its a 2 stroke it needs new reeds if not, your timing is prolly off a bit
advance the timing a little.
check the carberauter
The best answer for this is: Get a tune-up.
Your timing is off in most cases, or your carburetor needs adjusting.
The backfiring is due to leaning out the fuel mixture. You can richen up your carbs a bit either by turning the idle mixure screw, or it may require rejetting your carburetors.
If it is backfiring the timing is set incorrectly or the spark plug wires are not connected in the correct order.
To stop a Yamaha 1300 from backfiring, first ensure that the air-fuel mixture is balanced, as a lean mixture can cause backfiring. Check and adjust the carburetor or fuel injection settings, if applicable. Additionally, inspect the exhaust system for leaks and ensure that the spark plugs are clean and functioning properly. Regular maintenance and tuning can also help prevent backfiring issues.
Could be a hole or leak at one of the joints or cylinder head bolts / nuts.
motorcycle
More than likely you have a exhaust leak.Check the headpipe seal
To stop a VTX 1300 from backfiring, first check the fuel system for any blockages or leaks, ensuring the fuel filter and lines are clear. Next, inspect the ignition system, including spark plugs, wires, and coils, to ensure they are functioning correctly. Additionally, adjust the carburetor or fuel injection settings for optimal air-fuel mixture. Finally, ensure that exhaust leaks are fixed, as they can contribute to backfiring.