[danc30]

Thanks for the replies.

Ron- I have another pump on order with Summit. Should be here tomowrrow and I will replace and hopefully it solves the problem.

Morris- That spring won't work with the 12-150 pump. This is the fairly new "gearotor design". HP tech serv. said it sounds like the pump is surging and possibly defective. They suggested bypassing the regulator and feeding the fuel into a gas can and see if the same thing happens. If it does, they will replace/refund the pump.

Undy- The fuel filters, before and after the pump are clean.

I'll update after trying the new pump.

More suggestions of possible causes are welcomed.

Cross your fingers for me.....