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Post by renagade281 on Jun 22, 2015 17:35:29 GMT -5
Under the carb there is a small hose about 2 inches long that connects to nothing. After I filled up with gas my scooter started to act funny and not want to go at all at about mid to full throttle it would not go. So I stopped and gas was leaking from this small hose and it leaked gas down in my air filter
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Post by renagade281 on Jun 22, 2015 17:44:53 GMT -5
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Post by scooterpimp on Jun 22, 2015 18:10:03 GMT -5
That is a vent hose , your float needle isnt closing fully causing overflow. Could have crud in carb. , or inproper float height , possible sinking float. Etc.
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Post by renagade281 on Jun 22, 2015 18:35:54 GMT -5
Now it is leaking gas from here when I shut it off.. This is where the air filter goes.. Wtf  |
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Post by renagade281 on Jun 22, 2015 18:37:21 GMT -5
Mainly I want to know why it is not wanting to go sometimes... If it sits for a while its fine but say if I go up a steep hill it will start cutting out when I give it throttle
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Post by scooterpimp on Jun 22, 2015 18:44:17 GMT -5
Carb. Flooding will go into airbox as well ,fuel level in bowl too high will cause some serious bogging issues , i suggest you find whats causing float needle from closing before running it try tapping on bottom of float bowl for giggles , may be stuck? Could be full of crap or float could be sinking preventing float needle from seating.
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Post by renagade281 on Jun 22, 2015 18:58:41 GMT -5
OK I found out that this hose is what is leaking because when I unplugged it the gas stopped coming from the airbox and started coming out of this hose that I'm holding... I unplugged it from the sliver thing that is above it.. And where is the float to tap on... I am a complete noon Andi have to get this running tonight to go to work tomorrow  |
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Post by scooterpimp on Jun 22, 2015 19:06:25 GMT -5
The float bowl is the the part on bottom of carburetor , usually has 4 screws should be straight down from the black tube your holding center bottom. Check in tech section 90gtvert has some good pics/vids etc. That are very helpful. That hose you pulled is from vacume inline petcock. Aka fuel on/off valve. Sometimes they go bad also & will cause similar issues , but mostly when sitting.
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Post by renagade281 on Jun 22, 2015 19:59:46 GMT -5
I am just going to have to drive it like it is and hope it makes it to work
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Post by Fox on Jun 23, 2015 10:06:57 GMT -5
I am just going to have to drive it like it is and hope it makes it to work Well there's a solid plan.  |
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Post by renagade281 on Jun 23, 2015 10:55:53 GMT -5
Well I drove the car to work thankfully. Can someone point me to a detailed step by step on how to fix this problem I'm having. I have basic tools
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Post by renagade281 on Jun 23, 2015 10:56:14 GMT -5
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Post by renagade281 on Jun 23, 2015 10:58:38 GMT -5
I am just going to have to drive it like it is and hope it makes it to work Well there's a solid plan. I meant to quote u when I asked to be pointed to a step by step.. Sorry for the extra reply |
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Post by Silar on Jun 23, 2015 12:37:08 GMT -5
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Post by Fox on Jun 23, 2015 17:25:21 GMT -5
Sorry I couldn't help you earlier. I had to go to work for a few hours. There are three things that can cause the carburetor to leak/overflow. Dirt in the carb, float set too high, faulty petcock. The first and most common thing is dirt or debris inside the carburetor itself causing the fuel shutoff float pin to not seal properly. The carb has a float inside that raises up as the carb bowl fills up. It in turn raises a rubber tipped pin that comes in contact with a seat in there and that's what shuts off fuel flow into the carburetor. If there is grit or something in the way the pin don't seat right and fuel flows non-stop and if the engine is using fuel at a slower rate than it's filling up the carb then it over flows. Before starting to clean the carburetor go and buy a can of carburetor cleaner spray from any auto supply. I like the more expensive brands not the cheapy stuff cause the cheapy stuff leaves greasy film behind whereas the better stuff evaporates dry in seconds. To take the carb bowl off you have to remove the carburetor. Once you get it off the scooter set it on a rag on a table you don't care about getting gas on and then remove the screws that hold the carb bowl onto the carb body. If your carb has tamper resistant screws let us know and there is a video I think that covers the removal of those.  Then once the bowl is off then you can start to disassemble the float valve/pin assy. But first hold the carburetor upside down with the float pointing straight up and look at how it sits in relation to the carburetor body. That will tell you if maybe the float height setting is off. The 50cc carb body is slanted. The float should be level with the ground,. not level with the slanted part. I don't seem to have a picture of this. Okay so onto the carb cleaning. There is a pin that slides all the way through the float pivot point. That pin will slide right out and the float comes off with the rubber tipped pin attached by a small wire loop. Don't lose the pin!  Then once you have the float off the carb, you can inspect the float pin tip for wear and the inside of the pin/seat for debris. Put on safety glasses and spray the carb spray into the fuel inlet and the pin seat area liberally to flush out any debris. Also, look at the float holding it up tio a bright light. Checking for fuel inside the float which is a bad thing.   Next, since you've gone this far, might as well spray carb spray through every single hole on the entire carb that you can find. There are two removable jets but since your scooter is running I don't think you need to go that far but you can. You need a small thin flat screwdriver to remove the idle jet.  Idle jet:  Main jet and atomizer tube:  Main jet:  Once you have it all spayed out and reassembled you can reinstall the carb back onto the scooter. Okay so now on to the last possible suspect, the Fuel Petcock. It's a automatic valve mounted to the bottom of the gas tank (usually) that opens when the engine is running and closes when the engine shuts off so fuel only flows into the carburetor when the engine is running. It's designed to prevent an overflow. The engine makes suction when its running. That suction is called vacuum. The fuel valve is opened by the vacuum. There is a vacuum tube connected to the black rubber piece the carburetor fits into (Intake manifold) that runs to the fuel petcock. There is a fuel line running from the petcock to the carburetor.   To test the petcock, first remove the fuel line from the carburetor and the vacuum line from the intake manifold and watch both tubes.  No fuel should flow from either one. A little fuel may be in the fuel line and run out but it should stop. If you observe fuel flowing freely from the fuel line or the vacuum line then the petcock is bad especially if it's coming out of the vacuum line. That's a no-no. |
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