Runs for 5 min then losses power lots of spark and fuel carbs are clean

If it runs at all, then it is not the spark, so it must be fuel. Flush the tank and put in new clean fuel. If it still does not run right, then you probably need to rebuild the carbureator.

Maybe when the ignition coil heats up it will not produce any spark to the spark plug. Run the engine until it stalls and remove the spark plug and put the plug wire back on and ground the plug to the engine. See if you get spark at the electrode of the spark plug when you have some one pull the starter rope with the switch on the run position.

Fuel pump not giving enough pressure out of idle...seeing that you have changed the carb....you are having a fuel air ratio problem. Check carb again and then check your fuel pump.

ITs hard to diagnose these things over the internet, it could be so many things.
Is this a gradual loss of power? If so; Im sorry to say; that it sounds like its losing compression as it warms up. It is not cost effective to repair the unit.

If the loss of power is more sudden it could be a failing ignition module. Ive even seen spark plugs that quit working when they get hot.

To test this you will need a proper spark tester, laying the spark plug against the head will not provide an accurate assesment, and a can of carb cleaner. Run the unit with the air box cover and filter removed till it fails and immediately give a shot of carb cleaner in the carb and restart. If it starts right up it could be fuel related. IF it doesnt start right up then quickly test for spark. If no spark then its likely the ignition module. If it wont run on the extra fuel and it has spark then it has probably lost compression.

I would try using some solvent to clean the carb. It sounds like the float valve is not moving freely, therefore not letting enough fuel into the carb. Be careful though, solvent can be a bit rough on the engine, so be sure to drain it out of the fuel bowl and replace with the appropriate fuel before starting the engine.

Checked the vent cap on the fuel tank?
Check if it runs again great after pumping fuel...
Check when it drops power if both spark plugs still sparks...
You can have a bad coil or cdi...

DO A COMPLETE TUNEUP

1-NEW SPARK PLUG
2-NEW IGNITION COIL
3-ENGINE HEAD CLEANING
4-CARB CLEANING
5-BOWL FUEL CLEANING

AND THE MIX OF FUEL AND OIL AT 4:1 RADION THAT MEANS A SMALL OIL BOTTLE ON A 1 GAL OF GAS.
If you need more help post back!
Thumbs and testimonial are welcome!

1) carburetor gaskets/diaphragms may need to be replaced

2) ignition coil may be breaking down when hot

3) check compression when cold, then after it stops, when hot

4) could have a vacuum/pressure leak

*I would investigate carb first

I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

Tank filter not blocked? (Take tap off tank) Enough oil in motor? Try overfilling it slightly

Check your spark first,if you do not have spark your problem is the coils-if you do have spark the problem probaly lies withone of your valves getting stuck after getting hot and soonas it cools down a little it closes and then you can restart it till it gets hot again.Hope this helps