96' 85 hp stall at idle after warm up

[temple1975]

My motor idles well while cold. If you run for say 5 mins then slow down then idle the motor wants to stall. If you pull up the cold start handle it will stay running fine. If you get back on the throttle it does not hesitate or anything. The prime ball feels hard and the head doesnt not feel overly hot. The overheat buzzer and rev limiter work and neither of those turn on.

Thanks for any help or suggestions

Brian

[99yam40]

pilot jets/passages are plugging up, pull and clean carbs and the adjust like the service manual calls for

[temple1975]

Ok thanks.