Ive Got an Oldie... Ive noticed this last year and now this year.. Ive got a 1990 150 Blackmax xr4.. Motor Runs fine... But, when its peak of the summer and I Run it a good long distance, or Start pulling Tubers , or really put it to the battle, It starts to stall on Idle... In the Winter, Spring, Fall, It doesnt do it.. Just mainly in dead of summer.. Im in Louisiana so its high humid and 95+ degrees... Any ideas.. I dont know if its flooding itself out, If maybe its too Hot and shutting itself on on purpose, Or something worst is going on.. I changed the plugs this spring.. I just know, loading my boat after a long run is a pain in the Butt when its stalling...lol... Its peeing, but these old motors dont really put out a big strong pee like the new ones... I thought about maybe changing the impeller to see if maybe it was getting too hot.. Any ideas...