I thought I would start a thread showing some of the different pulse fuel pumps that one can get for the model gasoline engines.

In these two pics I show a plastic Walbro FPC-1-1 fuel pump in the upper left. The upper right fuel pump is a Walbro WIP-13-1.
In the lower right, is a NGH pump/regulator unit as used for the NGH 9cc gas engine. it uses standard Walbro carb parts.
In the middle of course is a typicalWalbro carb with its built in pump and regulator.
In the lower left of the pics is a Perry Pump made for gasoline.

Of course Mikuni also has several different types of pulse pumps as well. You can get rebuild kits for their pumps too.

That WIP-13-1 fuel pump is commonly used by r/c boaters using a clutched gasoline engine to supply water to the cooling cap, exhaust manifold and pipe connections while the boat is stopped or going slow.One line comes from a water pickup to the pump,another to the cooling cap and the third is a pulse line to the engine crankcase or intake.Once the boat reaches a certain speed the pump doesn't pump and the pressure in the line takes over.On the boat below I have it running to the cooling cap then to a Y with one line to the water cooled header and one out the side of the boat.

Interesting....Thankyou very much.