When gas is pulled engine spits and sputters as if too much or too less gas is being fired. replaced spark plugs, wires, fuel filter.

Does it spit, sputter, backfire, make noises, smoke ? Engine and transmission information .

It could be a fuse , but fuse's don't just blow for no reason , shorted circuit to ground or the fuel pump is drawing too much current (amps) . Plugged fuel filter , probabaly not the problem . How was it running before it stopped ? Low power at highway speed ? Spitting an sputtering , or just stopped running? Hooking up a fuel pressure gauge an testing pressure . Pull a plug wire an stick a screw drive in the end an hold near ground (metal ) on the engine , have a helper crank the engine . Is there spark ? Videos on youtube showing how to test for fuel and spark . Could be the ignition system too .

These things are notorious for having crank sensor failures. Not too expensive and not too dificult to replace. I would try that first.

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TUNE-UP, SPARK PLUGS, WIRES, AIR & FUEL FILTERS, FUEL INJECTOR CLEANER IN TANK, ALSO REPLACE PCV VALVE, & MOST IMPORTANT, REPLACE EGR VALVE, IT GETS TOTALLY CLOGED UP, YOUR ENGINE IS KNOWN FOR THAT. I HAVE A GNC 2500, 3/4 TON. SEEN IT ALL. CHANGE YOUR DISTRIBUTOR CAP & ROTOR ALSO. JUST DO IT !!!!!!!!!!!

fuel filter may be on backwards, restricting fuel flow, if not that check that the spark plug wires are on in correct firing order, as well as the spark plug gap. (spark plugs are not always gapped for the particular application from the factory due to the multiple array of applications a particular plug can be used for)

There are two things that can cause what you describe: Lack of fuel, and lack of spark.

The easy way to eliminate is put an extra spark plug in your pocket....Ride the bike until it quits, then pull one plug wire, plug in your spark plug and hold the base of it against the block, and crank the engine, while observing the plug.

If you have spark, fuel flow issue is likely, check all filters, and strainers (in tank too). You can pull the fuel line and open the fuel valve and observe flow, but be careful of spark and fire, happens EASILY.

If you do not have spark, investigate the ignition system, if electronic, you can be overheating, usually requiring component replacement.

Hi, Ok you have confirmed that it's not a fuel problem. You need to check for spark. Pull the coil wire off of the coil(secondary lead-looks like a spark plug wire) Have some one crank it over and listen for a popping sound. IF yes, spark is at the coil, that means all ignition sensors are working. Next check for spark at ends of wires after cap. IF no replace cap and rotor. IF yes remove a couple spark plugs and check for fouling(wet, fuel etc...) IF yes replace or clean plugs and retest for starting. IF no spark is present at coil you need to scan computer and watch for rpm signal. IF no rpm signal, replace crankshaft sensor with OEM delco part. BIGGEST problem with these engines is Cap and Rotor burn out.

stop replacing parts and get the ingine analysed, sounds like a map sensor or airflow sensor, a code checker won't tell you anything if the problem is not registerd in the memory

Old fuel in tank, fuel filter clogged, plugged/clogged carb. or fuel injectors.

1. Drain fuel from tank and replace with new fuel with SeaFoam or Lucas

2. Repace fuel filter

3. With engine running at a high idle and air cleaner off, spray or pour carb/fuel injection cleaner into carb/fuel injectors.

If problems persist, check plug wires for cracks and/or breaks. Pull spark plugs checking for fouling.

Internal combustion engines requires 3 things... fuel, air, and spark. You do not have enough of one or more of these. If the wires and plugs are old, change them.  Air filter, same thing.  Fuel filter can also clog up with stuff after awhile. When you take a look at the air filter check where the air comes from.  It is possible a little critter has built a home and blocked the air flow (rare, but, it has happened).