carb cleaning
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carb cleaning
Can anyone give me a link on how to clean my carb on my 150cc? Its been sitting in a hot Fl. room all summer. Can smell the nasty gas when trying to start it. A couple times it ran for a second or two and would then shut off.
- DeeDee
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Be careful of the vacuum diaphragm
Here you go:
viewtopic.php?t=20718&highlight=clean+125+carb
When you remove the black cap at the top held on by two screws, be careful you don't tear the rubber on the metal slide. Put your finger inside the hole and lift up. If it won't move, carefully remove the edge of the diaphragm from inside the groove on the top of the carb. Once you have the rubber safely removed, use some carb cleaner sparingly to free up the slide. You might need a fine wire to clean the jets.
Just went through this myself. Not much to it.
viewtopic.php?t=20718&highlight=clean+125+carb
When you remove the black cap at the top held on by two screws, be careful you don't tear the rubber on the metal slide. Put your finger inside the hole and lift up. If it won't move, carefully remove the edge of the diaphragm from inside the groove on the top of the carb. Once you have the rubber safely removed, use some carb cleaner sparingly to free up the slide. You might need a fine wire to clean the jets.
Just went through this myself. Not much to it.

- PeteH
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Actually, if you're just dealing with old gas, you might get away with just doing the bottom half of the carb - remove the bowl from the bottom, gently remove and clean the jets, and clean the needle valve / float assembly. Only if you need to get 'upstairs' into the air side of the carb do you need to remove the top and diaphragm stuff. That's fragile up there.
Start with the jets and needle/float valve. With old gas, that's almost always enough.
Start with the jets and needle/float valve. With old gas, that's almost always enough.
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- jrsjr
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...and easy on the wire thing. Be sure to use a very tiny stiff wire, one strand from a stranded wire will do it. It's better to soak the jets in carb cleaner and blow them out with pressurized air. The idea is not to ream out the jets which makes them lager and changes their calibration.PeteH wrote:Actually, if you're just dealing with old gas, you might get away with just doing the bottom half of the carb - remove the bowl from the bottom, gently remove and clean the jets, and clean the needle valve / float assembly. Only if you need to get 'upstairs' into the air side of the carb do you need to remove the top and diaphragm stuff. That's fragile up there.
Start with the jets and needle/float valve. With old gas, that's almost always enough.
- Tazio
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- Dooglas
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Thanks
I'll see in the morning if I can get at the bottom of the carb. I'm a little limited tool wise down here in my winter home. Talked to a shop near naples and he said they would get running for @ $150 bucks. Thanks again for the advice.
- DeeDee
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Don't pay the $150
Remove the seat bucket, 10mm socket. You don't need much more than a philips screwdriver and a can of carb cleaner. You can remove the gas line into the carb. It relies on suction from the carb to get the fuel to flow, so none should come out. Just be careful of the diaphragm on the metal slide. It's a $27.00 part, but took my local dealer over a month to get.
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If you haven't taken out a carb. and cleaned it I really recommend you study a good video.--multiple times. I think it's intricate and you must be careful not to damage soft metal screws and not to lose parts. The best I've seen is called "carb cleaning 101" on the ScootDawg forum. It has two good videos. One by "Big Guy" and a better one (IMO) by rossi46. His version follows "Big Guy". Good luck.
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got my scoot back today
I was afraid to work on my carb so got a place down here in Estero Fl. to do the job. They had the scooter 6 days. Cleaned the carb,,charged the battery. Out the door $152.00 bucks. You can bet I'll do a little better adding gas (stuff) whatever its called so the darn thing won't gunk up again. The guy who worked on it said it was pretty bad. Hey,,,It runs now. I'm happy.