Honda GC160 act up when hot, why? I have a Troy Bilt Pressure washer near a Honda GC 160...

I have a Troy Bilt Pressure washer near a Honda GC 160 engine. It runs fine when first started but, when it gets heat it wants s to die when below a load. If you release the trigger it will run fine. Pull the trigger and it will want to die again. IT IS NOT A GAS CAP PROBLEM. Please give a hand.
Bad odor contained by the house every time...
Answers:    The pressure washer pump is getting ready to lock-up. I enjoy seen this abundant times in olden times. Check your pump oil IMMEDIATELY! Hope you lock in the lack of lubrication problem since it's too late. If the grease is low, milky, or shiny metal fragments are in the grease, well inevitability I say it?