|
|
fuel pump
by: jerseyboy - Apr 10, 2015 18:16:44 GMT -5
Post by jerseyboy on Apr 10, 2015 18:16:44 GMT -5
Well on my scooter I just removed the fuel pump from the frame and put the valve inline,,yes its gravity fed so it has to be on a downhill path from tank to carb...not sure how your fuel pump is set up there,,sounds like a 50cc is different from a 150?
|
|
|
|
fuel pump
by: hillbillybob - Apr 10, 2015 19:29:07 GMT -5
lain likes this
Post by hillbillybob on Apr 10, 2015 19:29:07 GMT -5
There is a big difference between a fuel pump, and a fuel petcock.
|
|
|
|
fuel pump
by: lain - Apr 10, 2015 22:04:45 GMT -5
Post by lain on Apr 10, 2015 22:04:45 GMT -5
There is a big difference between a fuel pump, and a fuel petcock. Without the pump it would not work properly would it? Without the pump it would have free movement to push the fuel right through all of the carb because the gravity would keep pushing it down and out of the bottom of the tank right? Or does the float in the bowl of the carb stop that from happening? Just trying to get a better idea. |
|
|
|
fuel pump
by: onewheeldrive - Apr 11, 2015 0:20:15 GMT -5
Post by onewheeldrive on Apr 11, 2015 0:20:15 GMT -5
|
|
|
|
fuel pump
by: jerseyboy - Apr 11, 2015 8:58:28 GMT -5
Post by jerseyboy on Apr 11, 2015 8:58:28 GMT -5
It would work fine with just a fuel shut off valve like I posted I ran one for years with it and the bowl never ran low,,the pump on your scooter is just a vac operated petcock or shutoff valve anyway,,its not a pump,,the float needle will stop the fuel from flooding out the crankcase,,I have forgot to shut my valve off before many times and the needle valve always did its job,,but you cant always count on that needle valve,,i have seen them get stuck,,then the whole gallon of fuel gets dumped up through the intake down the jug into the crankcase or out the exhaust and onto the floor,,then you get hydro-locked and the scooter wont start or turn over,,you must change the oil and dump out all that gas at this time...but yes a fuel pump is far from a petcock or shutoff valve,,the low pressure pumps are great IMO like the Mikuni or the electric pumps that other guys on here run...that stock petcock should be tossed in the trash during PDI IMO...if not,,it will leave you on the side of the road one day cranking trying to get the bowl filled back up  |
|
|
|
fuel pump
by: lain - Apr 11, 2015 9:57:06 GMT -5
Post by lain on Apr 11, 2015 9:57:06 GMT -5
Well, I don;t have a problem with it filling up the carb bowl, I was just speculating that I think my pump may be giving too much gas somehow, but I'm thinking changing to a manual cutoff still wouldn't solve that issue. I cannot seem to find the part that connects to the gas tank with or without the cutoff in the listings for lowes, but they have the inline one.
|
|
|
|
fuel pump
by: jerseyboy - Apr 11, 2015 11:21:50 GMT -5
Post by jerseyboy on Apr 11, 2015 11:21:50 GMT -5
Take a pic of what you have there Lain,Im sure we can figure out some sort of connector for you,,Geh actually used copper line so there are many different ways you can adapt and connect things for the fuel system.
|
|
|
|
Post by geh3333 on Apr 11, 2015 20:50:54 GMT -5
Well, I don;t have a problem with it filling up the carb bowl, I was just speculating that I think my pump may be giving too much gas somehow, but I'm thinking changing to a manual cutoff still wouldn't solve that issue. I cannot seem to find the part that connects to the gas tank with or without the cutoff in the listings for lowes, but they have the inline one. If you go to a law mower shop , or I guess Lowes would have it, just use the inline shut off valve. I bought the 1/4 inch Manuel shut off. |
|
|
|
fuel pump
by: lain - Apr 11, 2015 20:53:33 GMT -5
Post by lain on Apr 11, 2015 20:53:33 GMT -5
Well, I don;t have a problem with it filling up the carb bowl, I was just speculating that I think my pump may be giving too much gas somehow, but I'm thinking changing to a manual cutoff still wouldn't solve that issue. I cannot seem to find the part that connects to the gas tank with or without the cutoff in the listings for lowes, but they have the inline one. If you go to a law mower shop , or I guess Lowes would have it, just use the inline shut off valve. I bought the 1/4 inch Manuel shut off. The problem is; what do I connect to the bottom of the tank where the vaccuum petcock is? If I remove that there will be nothing there to connect a hose to to connect to the inline fuel cutoff, or stop the gas from pouring out the bottom for that matter, so I need to figure that out before I can move onto trying the inline fuel cutoff. |
|
|
|
fuel pump
by: geh3333 - Apr 11, 2015 23:05:50 GMT -5
via mobile
Post by geh3333 on Apr 11, 2015 23:05:50 GMT -5
I gotcha, mine didn't have the tank petcock. I had the inline petcock. So if u remove it , you will just have a hole ? . can u cut the petcock in a way that one end is still inside the tank , then u can slide a hose over the piece sticking out ? Not sure if that is possible or not ?
|
|
|
|
fuel pump
by: onewheeldrive - Apr 12, 2015 5:33:51 GMT -5
via mobile
Post by onewheeldrive on Apr 12, 2015 5:33:51 GMT -5
I don't see how a fuel shut-off valve is going to solve whatever the problem is. All the petcock does is open up when vacuum sucks the diaphragm--- the vacuum isn't literrally sucking the fuel itself. It's just opening (sucking) a door to let the fuel in. Neither the petcock nor the shut-off valve are forcing anything.
The problem has got to be somewhere else, IMO.
|
|
|
|
fuel pump
by: tvnacman - Apr 12, 2015 7:59:35 GMT -5
Post by tvnacman on Apr 12, 2015 7:59:35 GMT -5
lain have you looked at this . I did see the postings of a mod on the old dawg the parts to make your own and time seem like a lot of work. John
|
|
|
|
fuel pump
by: jerseyboy - Apr 12, 2015 8:26:28 GMT -5
Post by jerseyboy on Apr 12, 2015 8:26:28 GMT -5
If the hole is threaded you can get a fitting with a 1/4"barbed nipple on it I would think...just teflon tape before snuggin it up,,then hook your rubber 1/4" to that then to valve.
|
|
|
|
fuel pump
by: lain - Apr 12, 2015 10:38:30 GMT -5
Post by lain on Apr 12, 2015 10:38:30 GMT -5
lain have you looked at this . I did see the postings of a mod on the old dawg the parts to make your own and time seem like a lot of work. John I would not be able to reach it once installed with my hands, I have thick fingers. That's why I am more inclined to get the inline ones. It's hard enough getting my hand in that area to check the hoses, I imagine trying to turn a knob or something would be impossible for me in the spot it is in. |
|
|
|
fuel pump
by: lain - Apr 12, 2015 10:40:34 GMT -5
Post by lain on Apr 12, 2015 10:40:34 GMT -5
If the hole is threaded you can get a fitting with a 1/4"barbed nipple on it I would think...just teflon tape before snuggin it up,,then hook your rubber 1/4" to that then to valve. That was what I was thinking, but I have no idea what a piece like that would be called or how to find it. I have been searching homedepot.com and lowes.com since they are what's near me, not finding anything like that but I think it is merely because I do not knwo what it is called. |
|
