Bike starts great when cold but won’t run after it gets warm

Trying to get this bike on the road again starts up great I the gArage but has no power on the road and won’t run after it gets up to temperature I know bike is older so people
Still ride vfr? It’s a 98 800fi good looking bike when cleaned up someone please help I’ve put new battery and plugs fuel
Is good runs great when cold
But won’t run after it gets warm just trying to find out if motor is trashed or not I’m thinking it has a burnt valve or hopefully valves just need adjusting

 

That comment is very familiar, "Starts easily when cold, then goes too-rich-to-run as it warms up"

That usually turns out to be a failed fuel pressure regulator.

 

Would being to rich to run keep it from cranking over

 

It barely turns over and backfires a lot and has no power going down the road

 

Yes, an over-rich mixture will make restarting a warmed up engine nearly impossible.

But you haven't mentioned whether or not the bike's exhaust smells of unburned gas. When a VFR runs rich due to fuel pressure regulator failure you can smell it.

 

I ordered one today thanks for the advice highly doubt its the issue but will
Keep posted .