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Post by yardog on Jan 18, 2013 20:53:04 GMT -5
Has anybody installed electric fuel pump on 150cc?
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Post by yosemite on Jan 18, 2013 20:56:27 GMT -5
Not needed, not even on a 250,
why do you ask what problems are you having?
Sam
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Post by qwertydude on Jan 18, 2013 21:32:29 GMT -5
It has to be a very low pressure and low flow to keep current usage down or you'll drain the battery. like 2 psi or less or you can end up flooding the carb. I don't think they're really that readily available.
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Deleted Member
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Post by Deleted on Jan 19, 2013 3:09:09 GMT -5
No, these engines use gravity fed carburetors, electric fuel pumps are usually reserved for EFI's and for good reason, the pressure an electric fuel pump generates would blow those puny rubber fuel lines to shreds, most likely you'd have to use aluminum fuel lines.
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Post by ronlee on Jan 19, 2013 9:16:18 GMT -5
I put an electric fuel pump on my Linhai 300 because it stopped on me one day. The fuel tank is below the engine so it is not gravity feed. The problem was the fuel filter developed a hole in it and it was sucking air. The best I could determine is that the pump was also bad so I installed an electric pump. There are many advantages to an electric pump. If your machine sits for a period and the fuel evaporates out of the carb. the electric will fill it before trying to start it. Run out of fuel and the pump will fill the carb. so you don't have to run the starter to pump fuel to the carb. resulting in instant instant starts. It was an involved job though as I had to run power for the pump, find a place to mount the pump and of course the cost of the pump of about $50.00 from Aircraft Spruce and Specialty. Make sure you get the one that is no more then about 2 pounds pressure, they come in many different pressures so you have to pick the right one.
The one I used is (Facet solid state electric fuel pump) I don't remember the number designation of the Facet fuel pump for the pressure I used
but it is something like 40102 or 40104.
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Post by snugglebunny on Jan 19, 2013 9:20:46 GMT -5
maybe the OP was talking about installing a electronic fuel injectors
and if so yea its very possible and inyusha has done it
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Post by Scooter Elements on Jan 19, 2013 9:38:36 GMT -5
This is what you need. Mikuni Vacuum Fuel Pump! It solves that issue you are having. No electric pumps for these scooters needed!  |
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Post by photowiz on Jan 23, 2013 12:18:50 GMT -5
I put a MR Gasket electric fuel pump on both of our scooters, If the tank is low on fuel, the head pressure is low. They have been on our 150's for over a year. It will NOT blow the rubber fuel lines. I'm using an outboard fuel filter from Academy. The filter element is replaceable.
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Post by skuttadawg on Jan 23, 2013 12:24:53 GMT -5
For a carb the Mikuni fuel pump may be enough to deliver the fuel as an electric pump would be more so for an EFI scooter like mine
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Post by qwertydude on Jan 23, 2013 17:57:10 GMT -5
They make electric fuel pumps specifically for carburetors but generally they're used for sending fuel much longer distances or to higher carburetors. They're usually in the 4 psi range. And although it's a relatively low pressure it's still high enough to sometimes force fuel past the float seal and over flow the carbs.
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Post by Moat on Jan 24, 2013 2:20:35 GMT -5
A lot of you folks don't seem to realize that a great many carbureted sportbikes since the late 80's have plunger-type (intermittent, solenoid) fuel pumps - essentially smaller versions of the Facet aircraft fuel pumps that ronlee mentions above. Simple, uber reliable, and low power consumption. Bike salvage yards are probably loaded with good useable examples, cheap. About the size of an average aspirin bottle. And no - they don't overwhelm the float valve and flood the carburetor.
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