Deleted
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Post by Deleted on Dec 12, 2014 16:38:19 GMT -5
My scooter stopped working about 2 weeks ago and I only just got the tools I needed to take it apart and attempt to fix it. To make this story short - I have absolutely zero mechanical knowledge or skills so I'm pretty much relying on youtube videos to tell me what parts are what. After the tube fell off, my scooter stopped working and I'm not really sure where it goes or what it is. I think it may have something to do with the hose that comes off the valve cover because that isn't connected to anything and I'm pretty sure it's supposed to be. Any help would be appreciated This is a pic of the tube that fell off: i.imgur.com/EHZtgw2.jpg
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tvnacman
Scoot Enthusiast
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Location: NYC
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Post by tvnacman on Dec 12, 2014 17:35:21 GMT -5
looks like the drain from the air box.
John
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Deleted
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Post by Deleted on Dec 12, 2014 17:42:11 GMT -5
So it goes into the air box then? So then where does the hose that comes off the valve cover go because I thought it might be the air box but wasn't sure. Also the ends of that tube are barely open and it looks kind of like it got melted or something. Should I replace it?
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Post by Fox on Dec 12, 2014 18:41:41 GMT -5
First of all could you please tell us what type/size scooter you have? Secondly, that tube has nothing to do with why your scooter doesn't run. Usually you find the clear tubes like that on the 150cc scooters. They are an oil catch for the air filter box. The tube from the valve cover is called the "crankcase vent tube" It connects to the air box too. It's purpose is to relieve the pressure that builds up inside the engine interior so you have toxic fumes and some water vapor coming out of there. They route it to the air box so it gets sucked into the engine to get burned in the combustion process to reduce the overall emissions into the atmosphere. The pics below is that of a typical 150cc setup. Yours may differ if it's the "Phantom/Hunter" style scooter. The clear tube just kinda dangles down and has a removable plug in the end so it can be drained periodically. Looks like maybe yours was too close to the exhaust or they melted/sealed the end of it instead of having a plug on it so you have to remove the tube to drain it. Either way, that tube falling off won't make the engine stop. It has nothing to do why the engine won't start. This pic shows a "Hunter style air box with a short tube that has a plug in it coming off the bottom of the air box. The vent tube will connect to a nipple on the bottom of the air box on the opposite side.
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Deleted
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Post by Deleted on Dec 12, 2014 19:16:13 GMT -5
It's a 49cc scooter though I'm not sure the make because it doesn't really have anything on it. I'm assuming it's a chinese model.
It stopped working right after I noticed that drain wasn't on there so I just assumed that was why. Do you have any ideas then? I should also mention that I can only kickstart it as the electric start doesn't work (it never worked while I had it) and I noticed that the kickstart has no resistance.
Those are really nice reference photos, though my airbox doesn't look exactly like them, but most similar to the first picture. Though my drain isn't long enough at all to connect like it does on the picture, which is why I was confused as to where it actually goes.
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Post by Fox on Dec 12, 2014 19:24:04 GMT -5
When you turn the key to on position will the horn and the blinkers work?
Do you have a smart phone so you can post pictures?
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Deleted
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Post by Deleted on Dec 12, 2014 19:33:03 GMT -5
The horn and lights work fine, and I have a battery tender so I charge it regularly especially since it's just been sitting unusable out in the cold.
I do have a smartphone, what do you want me to post a picture of?
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Post by Fox on Dec 12, 2014 19:42:22 GMT -5
If the scooter is taken apart then posts pictures of all of it. Airbox, engine from different angles. The frame/wiring etc.. Here's a little test you can try to determine if the starter is good. Locate the starter relay and touch a screwdriver or something metal between the two poles on it. The starter should spin when the poles are crossed. It may spark a little bit but it won't shock you so don't worry.
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Post by Fox on Dec 12, 2014 20:11:53 GMT -5
As for the lack of resistance on the kick start lever that most likely means a lack of compression which could be a minor issue or a serious one. If it's a tight valve then that is minor and can be remedied in less than a 1/2 hour (see "adjusting valves" in the tech section) If you ran the engine without enough oil in it and it died, then that's a serious issue.
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Deleted
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Post by Deleted on Dec 12, 2014 20:17:42 GMT -5
It sparked the first time but the starter didn't spin or do anything. It used to make a sort of clicking sound whenever I tried to electric start it, but now it doesn't make a sound at all. I know that isn't what's wrong with it however, because I was always able to kickstart it, but now that doesn't work. If I'm able to get resistance from the kickstarter at all, it will sometimes start, but die right away. Here are the pictures, sorry about the flash: imgur.com/a/VtAAW
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Post by Fox on Dec 12, 2014 20:26:14 GMT -5
So when the problems all started had you been checking the oil or not?
That little tube has no place on your scooter. I can't imagine how it got there.
You have a typical 139QMB 49.7 cc engine. Your scooter is referred to a a "Sunny" style or a "Commuter" Keep asking questions. There's lots of info and people that will help you learn how to fix your scooter. That's how I learned.
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Deleted
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Post by Deleted on Dec 12, 2014 20:30:42 GMT -5
I haven't checked the oil at all, I've had it for less than a month and have barely gotten to ride it because the problems started basically right away. I don't really know much about oil changing but I figured I didn't have to figure that right away. So are you saying that's the problem?
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Deleted
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Post by Deleted on Dec 12, 2014 20:32:28 GMT -5
So when the problems all started had you been checking the oil or not? That little tube has no place on your scooter. I can't imagine how it got there. Wow really? That's strange. It looked like it had oil/fuel in it though. Do you think it could've been connected to something it wasn't supposed to be?
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Deleted
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Post by Deleted on Dec 12, 2014 20:37:50 GMT -5
You have a typical 139QMB 49.7 cc engine. Your scooter is referred to a "Sunny" style or a "Commuter" Keep asking questions. There's lots of info and people that will help you learn how to fix your scooter. That's how I learned. Ahh, ok that's really good to know! You've been super helpful, by the way I'll definitely read up on my scooter specs and stick around this forum to ask questions when I need to
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Post by Fox on Dec 12, 2014 20:38:47 GMT -5
I'm saying it could be. Your engine only holds .9 quarts of oil and they lose oil over time so you have to check it 2 or 3 times a week and fill it as necessary. If you run it for weeks without checking it and it runs too low on oil it will damage the engine. So basically watch the oil change video in the 4 stroke section of the tech library and make sure the oil is full. Then watch the valve adjust vid and check your valves. If you have a valve that's tight it will cause the engine to be hard to start or not start at all. If you don't have a feeler gauge, use a strip of aluminum cut from a soda can. It's close enough. 49ccscoot.proboards.com/board/8/stroke-engine-tech
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