New 50CC Scoot Bogs & Shuts Off / Petcock Issue By straightbangin (Read 27,076 times)

[straightbangin]

Sduckers, I usually have to give my scooter a tiny bit of gas as I hit the start button. You would think that u should just be able to hit the button.

BATTERY - When you first bought the scooter did you drive it for about 30 min straight as you drove away from the dealership and really charge up the battery? As Alleyoop said your battery may need a charge. Can be charged with a charger or just running the scooter for awhile to charge it up IF you can get it started. Even if your battery is kinda dead you would think the kick start would at least get it started long enough for you scooter to charge it up. If you have an auto parts store near ( call and see if they do free battery checks) and if it is close enough to you push it there, do it and have them test it ( cold ) before you try to start your scooter for the day. This will give the battery a true reading.

FUEL - Your scooter may not be getting fuel from the gas tank to the carb/engine. This is a problem I'm having with mine. I couldn't start mine with the starter button or the kick start. To check the fuel delivery you will need to take the seat off to get in there. You will need a socket wrench set w/ an extender to do this. If you buy one or have one and it doesn't come with an extender, get one and also get a socket for the spark plug removal.

If you want to start learning how to fix your scooter yourself you will def need these tools and although you may have to invest in some tools it will save you a lot of $ in the long run on what you would have paid at the repair places/dealership.

VALVES - To adjust the valves you will need feeler guages. Its a special tool to see how tight the valves are. I couldn't find the size I needed for my scooter at the auto parts store so I bought them on Amazon. Valves that are too tight can make your scooter run crappy. Adjusting them is often part of maintenance. Maybe early on u may have to adjust them, maybe not until later. The dealships, especialy with these cheap chinese scooters often throw a scooter together but don't check / make proper adjustments to the carb, feeler guages, etc.

You found the right message board for help with your scooter issues. Is your scooter a 2011 like mine? How many miles does it have on it?

OIL - Oil change yet? You want to do that REALLY early on. The dealership usually gives it to you with crap oil and as it is broken in little pieces of metal and crap can break off and u want to clear that out.

With all the things we may suggest for you to check and try to fix, it may seem overwhelming at first but if you take things one at a time you will learn a lot and feel proud you are a chick that can fix her own scooter. You don't live on South Beach do ya?

[straightbangin]

Used/washed out hair dye bottle ( i dye my eyebrows not my hair ) is the best idea ever for getting fuel to the fuel line.

I ran my tank empty so I could remove the tank to replace the petcock AND see how much fuel reserve I have once the line is in the center of the E mark. Turns out it gives me 27 miles after that! So that means I get about 92mpg. Woot. My petcock hasn't given me crap for a week and I keep gas on me on the scoot w the seat loose so I'm going to keep just putting 1/4 tank in until it gives me crap again and keep it low. When it gives me crap again I'll replace it. Until them I'm recaulking my bathroom tile

Sduckers how are ya doing w the scoot issues?

[straightbangin]

Okay so I finally took the scooter apart, the gas tank out ( wow that was a lot of bolts/screws/faring to remove ) Luckily I ran the tank down to about 1 tablespoon of gas so it wasn't messy. I looked in the tank w a flash light and it looked like a TINY TINY bit of debris but nothing that could even get up to the fuel filter or clog it.The debris was maybe like 5 grains of salt big and black. So I took the petcock off and noticed 2 things:

1) debris stuck to the filter on 2 of the 4 sides of the filter screens.

wow I have some manly lookin hands. LOL. I can't do long nails or polish, those would break or chip w/ all the tom boy stuff I do like fixing my scooter LOL.

2) the vac hole on it looked way smaller than my new one AND it also looked kinda misformed like not a full open hole but like the metal on one side of the opening was kinda blocking the hole. It seems it was made faulty. The one on the right is the petcock the scooter came with.



I tried my best to dump out the drop of gas left in the tank and just swished a lil seafoam around in the gas tank. I'm going to pop the new petcock on and reinstall it all + add gas to the tank once its not blazing sun out where I'm trying to work

[Alleyoop]

WOW!! Quality is our most important products.LOL. Yes that would cause bad vacumm to the Petcock to open the diaphgram in there and allow fuel to flow.
Nice Going
Alleyoop

[straightbangin]

Hahaha, thanks but you are the one that helped me figure out I needed a new one. I just followed instructions. I'd be f**ked without the help of you guys, especially you alley, thanks so much. Just waiting for the sun to go down a bit before I put the tank back together

[straightbangin]

Okay that tank is back together and so is the faring by it. I tried to start it and it still wont start. I injected some fuel into the line since the tank WAS empty when I removed it. I tried to start it again ( and usually if its a fuel issue it will start instantly right after injecting fuel into it) and it still gave me the same noise where it doesn't want to turn over. So I pushed it 6 blocks to the gas station, added some sea foam, filled the tank and my little emergency bottle of fuel for the injector bottle I have just incase I need it in the future ) tried to start it once more after it was full. No go. I pushed it home. I wanted to at least have the fuel issue supposedly fixed tonight and hopefully it is. We shall see once I get my scooter running from the other issue. If when I get it running it goes back to a fuel issue I'll post more in this thread, if not, case closed & the faulty , poorly made petcock was to blame.

[straightbangin]

Update: Starting issue seemed to be problem with the battery. I charged it up and it worked fine, although it doesn't seem to want to hold a charge well so I may need to buy another..

Petcock worked good for 2 days. Today I went for a nice long ride. At about 8 miles of driving I was thinking, good this is charging up the battery nice and the petcock I replaced seems to be doing its thing. Just then the scooter shut off in the middle of a busy street. I had to push it to the side of the road and parked it while some dip hit on me and a bum yelled at me. I realized at least I could just open the little trap door in the trunk to inject gas into the line ( before I was taking the whole seat off ) I injected gas and it got me half way home and I had to do it again. It usually makes me do it twice them I'm good for half a day. Sooooo. It seems that replacing the petcock didn't help. I even sucked the vac line with the gas line hanging in a bottle and no gas would come out. It seems I am going to have to take the whole damn thing apart again and install a manual set up. Sigh. Back to the drawing board.

[royldoc]

Carefully drill out the hole where the fuel hose goes on the petcock with a drill bit the same size as the hole remove all the metal chips. When you are done you should be able to suck through it. plug the bottom hole where the vacuum hose goes on. plug the vacuum port on the intake manifold. Install a manual valve in the fuel hose.
This is how I installed mine.



I used zip ties to secure it to the frame.

Roy

[Alleyoop]

DAMN!! Having that Petcock attached to the Bottom of the Tank is a PITA. This is the way I would do it and then you can just get a REGULAR petcock and or cutoff and put it where you can easly get at it if you have to.

Also when you do take the tank off again Make sure it is CLEAN inside and no crap. Something is in the tank causeing the Clogging is my contention. Check that stupid so called filter on the Petcock that goes into the tank see if that has crap on it.

Since you have the OLD petcock you can be getting the little parts ready and actually strung out and just ready to put on after the tank is empty. With the Old Petcock you can go to a hardware store or whatever and maybe luck out and get something that will screw on like the Petcock did but with a tube on the end of it to put on the fuel hose.
Alleyoop
49ccscoot.com/manfuel.html

[royldoc]

Alley, I was going to use the pipe fitting method. But the threads on the fuel tank are metric and the fittings are tapered pipe threads. It should work though. I just didn't want to risk stripping the threads on tank it is real soft metal and I didn't want to have to repair or buy a tank. I also have spare petcocks If I screwed one up.

Roy

[Alleyoop]

Either way will work BUT i would first take the Pectcock off and take that damn tube Filter OFF and put in a Real Fuel Filter in line BEFORE the New Petcock or cutoff valve.

So if crap comes out of the Tank it will not clog up the Petcock or Shutoff valve.
Alleyoop

[royldoc]

The short rubber hose On the tank is probably the best bet. Like you said, get rid of the plastic filter in the tank and use a good inline filter before the manual valve.

Roy

[straightbangin]

Thanks Royldoc, nice idea, but I'm so pissed at the petcock that I don't even want to deal with it. Also I can't drill metal with my drill, even if I'm careful the bits snap so quick and they already sent me replacements.

I was looking at this : 49ccscoot.com/manfuel.html and it seems like a great idea but I'm wondering if all that extra hardware is needed. Can't I just stretch a big hose over the " threaded nipple "i guess I will call it that hangs out of the bottom of the gas tank and lead that down to a smaller hose that connects to the manual shut off which I'm guessing I should put just after the fuel filter in the line. Its def good there is one since there will be no fuel filter by where the petcock was anymore.

Would just have to find a way to connect the larger fuel line to the smaller line. Oh, I could prob toss a short/hard plastic little tube between the two ( clamp the larger hose onto hard plastic tube and then really stretch the smaller hose over the other end. It would have to be a plastic tube that is just slightly smaller than the big hose and slightly bigger than the small hose. I think I have something like this thats why I'm thinking of it. Do you think this would work? I def want a clear fuel hose when it gets to the part by the shut off so I can SEE the fuel flowing No more sucking fuel lines, it was kinda embarassing to do with that dumb kid hitting on me on the side of a busy street.

********EDIT: Wow u guys just both posted again while I was posting. I have to go back now hahahaha and yes Alley I made sure the tank was clean on the inside when I took it out I found that link u gave me before on how to do the manual. I was searching all through this thread for it before and I have a fuel filter in the LINE, it came with one. I see it daily when I pull the house out of it to inject fuel into the line LOL. Roy that's what I was thinking. It sounds excellent. I'm so annoyed that I have to take this whole #@*&ing thing apart again but I feel good knowing I can rig something to make it work better. I love creating ways to rig things to make them work. Obviously I learned how though you guys but I want to try to make it a little different on my own too, not sure if my idea will work though.

[straightbangin]

My 1st grade looking fast sketch of what I'm thinking of, tell me if you think it work, if u dont think it will, my feelings will not be hurt I saw the auto shut offs cheap at the auto parts store which is close to me and they have different kinds of tubes/hoses there too. Do I need a certain kind of hose that is okay for gas? I don't know if gas can wear down plastic or rubber hoses that are not meant for gas. I'm going to guess that since the vac hose is no longer going to be in play gravity instead of suction makes it flow? Too bad I can't just stretch the little hose over the threaded nipple thing that comes out of the gas tank or too bad I can't find a tapered gas hose, hmm maybe I can.

[royldoc]

You draw diagrams better than I do. That would work. You need to be sure the fuel will not melt the plastic tube though. Auto parts stores have hose adapters that will work.

Roy