Won't start changed spark plug, new fuel, new filter. wont start

Try starting it with the air filter removed. If it starts, clean the air filter. It could also be the fuel filter. If you replaced all the fuel lines, make sure you didn't get the oil line mixed up with a fuel line

you need 3 things, air, fuel, and spark. if u have spark coming from all plugs, then ur good there, if you have fuel, and it still wont start, it may be the maf sensor or one of the other airflow sensors such as the map sensor.

Not that I know of.
Are you getting spark to the plugs when it won't start, and how long do you have to wait for it to start ?

Have you ever heard of testing before replacing parts ? Fuel pressure an flow tesing , testing the electrical circuit for the fuel pump , amp draw testing , voltage drop testing etc... Thier are no magical fixes in auto repair . No spark ! check B+ voltage an ground circuits for the ignition system , Ignition System Designs Operation and Testing an SD Premium video

spark plugs are deep in the head yet you should get all the the old fuel out first, stale fuel wont ignite and will also clogg fuel filter. you need a mix of atleast 70% new fuel even then its not good for the injecters. If its a manual gearbox a tow start is a quick fix although no go for auto's. cant be much wrong if car was fine when parked, plugs-fuel-filter and possibly fuel pump for sure. If that doesnt fix take plug out put in lead and crank engine to be sure you have spark even just put any plug you know works in lead leaving your plugs in engine just to check for spark y turning over engine looking for spark on plug good spark will be blue but any spark is good.

try priming it mite work lol

Probably the inertia switch for the fuel pump..You owners manual should show you where its located..See if the button has pop up ..If it has push it back down until it clicks..If it wont stay down then hold it down and see if it will start..If it does you will have to replace it..If thats all good then check the relay for the fuel pump..

Check tank fuel filter. safe way, put hose on end of filter blow through hose, fuel should come out of filter easily.

COULD BE STOPPED UP FUEL FILTER.CHECK FUEL PRESSURE SHOULD BE 48 PSI. IF LOWER HONDA ADVISE TO REPLACE FUEL FILTER.YOU HAVE TO REMOVE FUEL PUMP THROUGH ACCESS PANEL FROM THE FLOOR.IF FUEL PRESSURE OKAY.REPLACE AIR FILTER.REPLACE SPARK PLUGS IF YOU HAVE OVER 110000 MILES ON THEM.IF SPARK PLUGS BEEN CHANGED ALREADY.IF ENGINE STILL WONT CRANK AND IDLE.CODE SCAN FOR A FAULTY IDLE AIR CONTROL VALVE.

check gas tank with light is there dirt in tank? did you change fuel filter? is there spark at the spark plug? try a 2 second spurt of starting fluid in carburetor and crank does it fire?if it does then you most likely need to clean carburetor with carburetor cleaning spray, flush fuel lines with spray and swap fuel filter.