130 V-4 cold start issues

[Fishers20]

I have a 1996 130 V-4 that recently has become difficult to start when cold. After it sits for longer than 15 minutes it will start but dies while idling in or out of gear. It does seem to help to run the engine at fast idle for a minute after sitting. And sometimes has to be choked to start. When first starting ,cold, it does take longer to crank than it use to. Any suggestions would be greatly appreciated. Thanks

[rodbolt17]

check compression, check spark, then clean the fuel system.
at 5000 RPM that fuel pump diaphram moves 10,000 times per minute.