Turns over but wont start

You will have to check for a spark at the spark plugs. Put a known good plug into one of the spark leads and turn the engine over. You should have a good spark every revolution or so. If not, then either the ignition module or coil or crankshaft position sensor has failed. Of course, check all fuses first if no spark. If you have a good spark, and the bike was not lying up un-used (gas gone off) then I have come across worn cam chains jumping over the cam sprockets and upsetting engine timing. Rare enough and only in poorly maintained bikes. Remember, an engine needs three things, gas, compression and spark. All in the right order of course (engine timing).

Need to make sure you have at least 50psi. If you do, check all your fuses or any stored engine codes. Possible injectors not firing.

check following...fuses
spark plugsht leadsdistributorfuel compression immobiliser

some bikes need a certain amperage from battery for the pickups to work, is battery good, and correct type

Do the spark plugs have spark?
Also check the condition of the air filter.

Is the vehicle fitted with an immobilizer?

Check spark plugs, and your air filter.

Did you check for spark? It sounds like you're not getting spark. Check for spark. If you are not getting spark then it sounds like you might have to replace the coil packs. Is it running a L4 engine? If its running a standard chevy L4 its probably the coil packs. Try to replace them check again for spark.

Well if it has been sitting, check your main things ie: you have a good or new battery, all your fuses are intact,make sure you drain all the old gas out of the bike and try to clean the carbs with some carb cleaner. It sounds like if it is not a bad battery then your gas has turned bad on you in which case it wont start until you clean it all out and put fresh gas in it.Also make sure you clean the spark plugs and check for spark.Good luck.

checked spark its good went after fuses all good hit bottom of gas tank with rubber mallet and it started almost positive its the fuel pump

Cars need three things to start. Fuel, Air, and Spark. Chances are it's either missing fuel or spark. If you smell fuel when you turn the engine over the that means you dont have any spark. If this is the case check the distributor to see if it is functioning. If you don't smeel gas then it's probably not getting fuel. In this case, start of By checking all of your fuses to see if any are blown. Mainly the fuel pump fuse and relay. These are the cheapest to start with. If your fuses are good and relay is funtioning then check the fuel pump itself. Hope this helps you and good luck.