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Post by jaciche on May 31, 2018 19:20:58 GMT -5
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Post by tortoise on May 31, 2018 22:04:39 GMT -5
tips on how to troubleshoot this? If gas tank has a vent line . . bump may have caused splashed fuel to wet vent element, restricting fuel outflow. Try a test run with a loose gas tank cap. |
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Post by onewheeldrive on Jun 1, 2018 1:58:53 GMT -5
Check the carb area and see if one of the intake hoses came off of it a bit. Make sure the carb is still in the intake manifold all the way. I’m not sure from the video.
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Post by toddmaples on Jun 1, 2018 6:58:58 GMT -5
No my post is about the pumper section of my carb being dirty and gunked up. More than likely you knocked your carb loose. Go from intake manifold all the way to the airbox, verifying everything is tight. I have seen restrictors in the airbox get knocked loose and fall inside the airbox causing your symptoms. If everything is tight and in place, then its more thank likely a carb issue and something got thrown out of whack. Report back and we will try to help. |
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Post by onewheeldrive on Jun 1, 2018 20:52:43 GMT -5
It could be the problem but I’d guess probably not, unless your scoot has other leaks or it’s setup is so lean that any extra air could cause it to bog. Some setups are touchy though, so definitely look into it.
Maybe try and cover it (quick fix) and ride down the road to see how it runs, but either way I would fix it.
I’d take the whole airbox off and look for any other cracks or openings. Is the airbox tube on the carb all the way and clamped down nicely?
Check the other side, too, if you haven’t yet, and make sure the carb is on the intake manifold all the way. Some of those intake manifolds are hard to get the carb all the way in, seriously! The airbox and tube tend to hold the carb in place (in the manifold) so it may be a bit deceiving to the eye but in reality it may be barely on/in.
I’d also check any other hoses you have for leaks and make sure they’re on good.
It might be a good time to clean the carb while your at it.
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Post by toddmaples on Jun 2, 2018 17:04:34 GMT -5
Ok, I don't have much time to look at my scooter this weekend, but I did start it and rev it with the gas cap loose, same thing. But while I was walking around it, I noticed the air intake tube going from the airbox to the carb looked a little odd. The first picture shows how I found it. The second shows that there's another lip inside there but its not forming a tight seal with the airbox I believe. Could this be my issue? The only reason why I ask is because it seems like it wouldn't have a huge effect on how it runs based on if it let some extra air in between the intake tube and airbox, but I may be way off. It looks like the tube was glued to the airbox before. Do I need to re-glue the tube to the airbox?   if its pulling air from after the airbox then this is probably the issue. There is usually a restrictor in these airboxes to create extra vacuum on the intake stroke, any air leaks severly affect this and will show as bogging and generally not running good. |
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Post by toddmaples on Jun 2, 2018 18:39:56 GMT -5
Ok, I don't have much time to look at my scooter this weekend, but I did start it and rev it with the gas cap loose, same thing. But while I was walking around it, I noticed the air intake tube going from the airbox to the carb looked a little odd. The first picture shows how I found it. The second shows that there's another lip inside there but its not forming a tight seal with the airbox I believe. Could this be my issue? The only reason why I ask is because it seems like it wouldn't have a huge effect on how it runs based on if it let some extra air in between the intake tube and airbox, but I may be way off. It looks like the tube was glued to the airbox before. Do I need to re-glue the tube to the airbox? This is definatly the issue. Put the hoise back into the back of the airbox and use some black RTV Silicone (permatex) to seal it back up. It can be bought at any major retailer or auto parts store. |
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Post by onewheeldrive on Jun 3, 2018 2:29:24 GMT -5
Hopefully it is the issue. I used black silicone on pretty much the exact same spot (50cc airbox) years ago. My leak wasn’t as big but then again it looks like his thumb is pushing down on it making it look a lot bigger. It does look like the whole hose is out of the box all the way around way more than it should be. Must’ve been a pothole that you see where I live, lol.
Probably a good idea to clean the tube out while your at it since the air coming in there isn’t filtered. It’ll be dirtier than usual and you will probably see crap on/in the carb if you take the hose off of it.
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Post by jaciche on Jun 3, 2018 15:32:09 GMT -5
Ok thanks for the help. I used the red high temp rtv silicone on there and it's drying now. I'm working on setting the correct valve clearances and cleaning the carb today, I probably wont have time to get it all back together today, but I'll let you know if the issue is solved when I get it started again!
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Post by jaciche on Jun 3, 2018 20:12:02 GMT -5
Can someone provide a picture or video showing where where all the vent lines and fuel lines should be hooked up? I think I messed up the proper line connections when I put the carb back in.
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Post by toddmaples on Jun 4, 2018 6:39:32 GMT -5
Can someone provide a picture or video showing where where all the vent lines and fuel lines should be hooked up? I think I messed up the proper line connections when I put the carb back in. I don't have a universal pic avaliable, but if you take a pic of your carb/intake area I can try to help out. |
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Post by jaciche on Jun 4, 2018 9:38:43 GMT -5
Can someone provide a picture or video showing where where all the vent lines and fuel lines should be hooked up? I think I messed up the proper line connections when I put the carb back in. I don't have a universal pic avaliable, but if you take a pic of your carb/intake area I can try to help out. I just watched a few youtube videos and I'm pretty confident that I know where everything goes now. I should get it all back together tonight and i'll see how it runs. It's kind of a pain having the gas tank under the front of the seat. I think its much more convenient to have it located further back near the tail light. |
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Post by toddmaples on Jun 4, 2018 11:24:07 GMT -5
I don't have a universal pic avaliable, but if you take a pic of your carb/intake area I can try to help out. I just watched a few youtube videos and I'm pretty confident that I know where everything goes now. I should get it all back together tonight and i'll see how it runs. It's kind of a pain having the gas tank under the front of the seat. I think its much more convenient to have it located further back near the tail light. I prefer having my tank above the carb myself also, preferably in the tail section or like the sport-bike-look-alikes where the tanks where the sportbike tank is usually. |
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Post by jaciche on Jun 4, 2018 21:06:05 GMT -5
I got it running and put back together! The issue is fixed. Thanks for the help everyone  |
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