New 50CC Scoot Bogs & Shuts Off / Petcock Issue By straightbangin (Read 27,074 times)

[straightbangin]

Thanks. Okay so I def need a hose made for fuel then. Hose adapter! Yay! That's what I was trying to make with the hard plastic tube inbetween. I'm going to have to hit the auto parts store tomorrow and see what I can come up with. Will take some hose measurements first and measure the opening of the old petcock for how big a hose i need there

[tvnacman]

Shannon , your fuel hoses look like the ones from the factory . Is this the case for the vac lines too ? If so get fuel hoses , and replace all the lines vac and gas , auto part stores sell fuel hose in different sizes I used 1/4 with hose clamps .


John

[straightbangin]

Okay. Thanks. I'm hoping to find a clear one that is okay for fuel. I wanna see the gas flow damn it I won't need the vac line though if I'm getting rid of the petcock. I've gotta seal up that hole on the intake manifold. I'll prob use a little dot of rtv (high temp) silicone to seal that one up. I have some of that I have got to take apart all the faring, and take the gas tank out AGAIN to get to the petcock either way so I'm just getting rid of it. If I had to get all the way in there just to try a line replacement, im just like ef it, I'm getting rid of the damn thing. I'm fine with manual shut off as long as I don't have to deal with these stupid fuel issues any more

[tvnacman]

you need vac for decell, otherwise it may back fire .
John

[straightbangin]

So don't plug the vac hole on the side of the intake manifold?

[tvnacman]

no you still need it to go to the carb . look at alley's pic of the carb ask him about it . he can be more detailed orented .

john

[straightbangin]

thanks.

3 quick questions:

1) are you supposed to replace the fuel filter every so often? ( it says nothing about it in the maintenance manual, which I know is pretty much outdated, poorly translated junk anyway)

2) if so can you just wash it out instead of replacing it?

3) does it matter if you install the manual shut off above or below the fuel filter in the line?

[Alleyoop]

You cannot Clean the Fuel Filter you have to replace them. If it is still clear then it is still good.
It will start to get black or dark if particels are coming loose from inside the Black hoses.

TO try and avoid the Shutoff Valve from also getting crap in it Put the Fuel Filter BEFORE the Shutoff valve then a hose from the shutoff valve to the carb.

I looked at your Carb from a previous Video and Your carb does NOT appear to have a Decelerator , It looks like it has a PUMP.

If you DO NOT need Vacumm for a Decelerator then you can BLOCK off the Nipple going to the current PETCOCK. I think you need Vacumm to the Canistor I THINK. If a Vacumm Line is going to the Canistor just leave that one on.
Here is the Decelerator on a Carb which needs Vacumm:
Alleyoop

[straightbangin]

Gotcha on the fuel filter and putting it above (before) the fuel shut off in the line. Thanks

I was hoping to remove the whole petcock and put a hose right on the thing the petcock was screwed onto (the threaded nipple comming out of the tank) What is the canister? The gas tank?

[royldoc]

Maybe I should have been more clear about the vacuum hose that goes to the petcock. If you remove the petcock you will no longer need that hose. follow it from the petcock down to were it connects at the other end. It may be connected onto a tee or on the manifold. Regardless of were it is connected to. You can remove it and plug the hole. Some carburetors have a decelerator valve and some don't. If your carburetor has a decelerator the vacuum hose may be connected on a tee. Some manifolds have two vacuum nipples. One will usually go to the emission stuff and one is used for the petcock/decelerator. I would not use silicon to plug the hole. I use vacuum caps. you can get them in a small pack at the auto store. I have an assortment and used the 3/16 inch size to plug the port.



1) Yes you should replace the fuel filter every so often. I change mine every spring. Most people just wait till it's a problem.
2) The cheap ones you can't clean. Some of the more expensive ones have removable cartridges in them and can be cleaned.
3) You should have the filter between the tank and the valve. Like this.



The green and white thing is the filter. The red thing is the valve. The bottom of the fuel tank is just a little higher than the filter just out of the photo to the upper right. You should try to run your hose as straight as possible from the tank to the carburetor down hill.

Roy

[drjeff]

kidsatvparts.com/xcart/product.php?productid=17614&cat=273&page=1

Here is a link for a manual valve.
I have done business with there folks, they are great and ship fast.
If you call ask for Chris.

[Alleyoop]

Straight, Yes put a hose on the Threaded part on the tank and you can either use a ZIP TIE to keep it nice and TIGHT or a Clamp. Then run that hose going downhill then the FUEL FILTER then the SHUTOFF then a Hose From the SHUTOFF to the Carb ALL DOWNHILL NOP DIPS in the line.
Alleyoop

[eivad11]

the screws that hold onto my petcock on mine go into the tank and gas is exposed to them, can i just screw them back into the tank w/o the petcock and run a fitting threw the filter hole.

[straightbangin]

Thanks Roy, good info. My vac line runs right to a little thingee on the intake manifold. Those caps look like the round foam ear plugs I was thinking about how I need to keep the line straight too since its pretty much gravity making the gas run down. The place where the gas line connects from the tank to the carb is a diagonal line since the tank hole is opposite the gas hole on the carb so its going to have to be a diagonal straight line I guess . Damn I wish I could just have it run straight down the side of the body w zip ties like u have, then I could just reach under the faring to flip the switch instead of opening the trunk to pop the little trap door. Oh well.

Thanks drjeff, they have them at the auto parts store for $3ish. I'm trying to order as little as I can lately since my mail man mixes up the mail. I got a pair of kinky men's underware that was supposed to go to my neighbor 2 doors up the street. I didn't realize it wasn't for me until I opened it and was like what the?? So I don't trust hes not delivering my mail to the wrong people too now

Thanks Alley. I think I'll use a clamp. I'm afraid i wont get a zip tie tight enough and they very last thing I want to do is take the whole damn thing apart to refasten it if it comes loose I can do a straight line w no kinks At this point I just need to make sure I can buy a hose that is ok to use with gas that is wide enough to go over the thing on the gas tank and something to make it go from larger size hose to smaller size hoses ( attachment thingee ) I'm going to look at the auto parts store today, if i can't find anything maybe I'll look online. I have about 2 weeks until I have to rip it all apart again because that's how long it will take for the fuel to run down between me adding fuel to the line and the petcock working on and off. I shouldn't have FILLED the tank expecting the new petcock would work. Live and learn

EIVAD11 - that's right ur petcock attaches a little different than mine. I suppose you could just screw the screws in, maybe slip a rubber washer in there too for each screw to keep it air tight and then a fitting for the hole Thats my " newbie " opinion, I'm no expert like these guys

Oooo I figured out what I need for big hose to small hose. This Just have to find it in 9/16" to 1/4"

[royldoc]

It would be ok to run the hose from the tank across to the other side then down to the carb. just be sure it slants down hill with no dips back up.
eivad11, I would just drill that one out.Or make a plate with a hole tapped for a fitting. gas tanks are pretty thin and if you just screw a fitting in it may not hold or seal up.

Roy