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Post by 4drgsr on Jan 5, 2011 16:44:02 GMT -5
well after i change the choke and the scoot was running perfect till my nephew was riding it on the dirt and the air box fell off and he didnt notice then he went over lil of water and then the scoot turn off and we couldnt tund it back on, after few trys it turn back on but it was really bad it wouldnt stay on and the throttle responce was really bad i also notice that gas was shooting out of the filter side of the carb and from the side of the carb where is a lil piece of hose but dont really goes no were i think is just like a vent or something.. i took the carb apart and the Carburetor diaphragm look like it blow up and strech or something cause it didnt fit were is suppose to be can a bad Carburetor diaphragm cause it to act like that? would lil bit of water cause the Carburetor diaphragm blew up like that and make it to shoot gas out of the filter side of the carb and the side of it?  |
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Post by edfr on Jan 5, 2011 19:55:06 GMT -5
Yes if the Diaphgram is blown it will flood and gas will come out of the hose that is near the top of the carb that is bent down. You can just get a new diapghram but make sure it is for your carb model. And a blown diapghram will not raise the needle so it will run like crap. About all it will do is idle for you and maybe run up to around 15mph half way descent.
Lefty
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Post by earthman on Jan 6, 2011 0:14:27 GMT -5
any body got an idea how often diaphragms go bad, as I have never heard of this happening.
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Post by edfr on Jan 6, 2011 0:37:21 GMT -5
Earthman,
They usually do not go bad that often. Most of the time it is age and or sitting for a long time and the rubber dries. Then you go and start your scoot and and crank it and the pressure rips the rubber and or leaks by the two plastic holders.
Lefty
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Post by 4drgsr on Jan 6, 2011 13:11:55 GMT -5
well thanx guys im gonna change it later on and see how it turns out.. right when it was perfect and now this happen!! is that bad luck or wat??? lol!!!
a quick question 152qmi use the 24 mm carb?
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Post by tomcas on Jan 7, 2011 6:40:36 GMT -5
I assume the diaphragm you're talking about is the rolling diaphragm that lifts the slide. It's supposed to look thin, limp, not necessarily smooth or laying in the space completely without any wrinkles. What's important is the molded o-ring at the top fits well into the groove to create a good seal, it should be positioned for the least amount of bunching or wrinkling as possible, and most important it can't leak air, which incidentally is all it seals since it's job is to create lift to smoothly raise the slide without any friction or sticking. If you develop a hole of tear it will limit how far the slide will rise up. If the hole is near the side wall and is alternately sealed and opened as the slide moves up and down then the slide can actually porpoise up and down as you try to give it max throttle. If you remove if you can hold it up to the light and manipulate with your hands while examining for any tears or holes. You can also remove the carb from the bike and test for complete and smooth motion using a vacuum cleaner. www.youtube.com/watch?v=g0RQ47PNfYA&playnext=1&list=PL0FCC14CA4DB22444&index=23 |
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Post by 4drgsr on Jan 7, 2011 12:27:22 GMT -5
yeah i notice the molded o-ring at the top it dont fit no more cause i took it aprt few time to cleaned and it used to be fine but this last time when the air box fall off and got water and i took it apart to see wat happen the molded o-ring at the top didnt fit no more and it look like got streach some how.. i was at www.scrappydogscooters.com they only show one Carburetor diaphragm for the 125 and 150cc scooter and when i went to the store the guy was been a d!ck and didnt wanna help me he say that they are so many different carbs and he didnt knw wat kind of carb i had even thought i toll em i had an all stock 152qmi motor and say they only had the Carburetor diaphragm for 24mm carb and if i get it i couldnt returned if it didnt fit.. how can i find out wat size carb do i have?? the guy is a d!ck but i have to get the part to get my scooter running again and is the only place in town that i can get from without order it online. |
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Post by tomcas on Jan 7, 2011 13:16:45 GMT -5
yeah i notice the molded o-ring at the top it dont fit no more cause i took it aprt few time to cleaned and it used to be fine but this last time when the air box fall off and got water and i took it apart to see wat happen the molded o-ring at the top didnt fit no more and it look like got streach some how.. i was at www.scrappydogscooters.com they only show one Carburetor diaphragm for the 125 and 150cc scooter and when i went to the store the guy was been a d!ck and didnt wanna help me he say that they are so many different carbs and he didnt knw wat kind of carb i had even thought i toll em i had an all stock 152qmi motor and say they only had the Carburetor diaphragm for 24mm carb and if i get it i couldnt returned if it didnt fit.. how can i find out wat size carb do i have?? the guy is a d!ck but i have to get the part to get my scooter running again and is the only place in town that i can get from without order it online. For God's sake man use some sentence structure. |
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Post by edfr on Jan 7, 2011 13:29:18 GMT -5
4drgsr,
Measure the INSIDE of the opening by the Butterfly, that is where it connects to the Intake going to your engine. If its a 24mm Carb the opening should measure 1" and 1/32 or just a little over an inch.
Lefty
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Post by 4drgsr on Jan 7, 2011 13:50:40 GMT -5
4drgsr, Measure the INSIDE of the opening by the Butterfly, that is where it connects to the Intake going to your engine. If its a 24mm Carb the opening should measure 1" and 1/32 or just a little over an inch. Lefty thanx bro for the help! i will mesure it today and see if i can get the right one. |
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Post by rockynv on Jan 8, 2011 9:02:41 GMT -5
4drgsr, Measure the INSIDE of the opening by the Butterfly, that is where it connects to the Intake going to your engine. If its a 24mm Carb the opening should measure 1" and 1/32 or just a little over an inch. Lefty thanx bro for the help! i will mesure it today and see if i can get the right one. If the diaphragm is all stretched out so that it does not fit now and the carb is not usable in its current state then take the carb out, remove the diaphragm putting it in a zip-lock bag, the screws, cover and other loose parts in another zip-lock so you can put everything in a box and take it with you to the parts store. Compare everything side by side at the parts counter so you can verify the match before you buy anything. We are not talking about a 4 ton anvil here just a very small carb that will fit in a lunch box and possibly a coat pocket. I bought the universal diaphragm from ScrappyDog and it was not an exact match for mine as Lance used a Japanese Dekni in my 2007 Vintage and not a knock-off. The length of the slide was slightly different, the needle holder was not included with the one from ScrappyDog and the original one from my carb would not work with it. Thankfully I did not really need it and I was replacing it on principle but as they say if its not broke don't.... Anyways if there is any way possible for you to do so bring the carb with the diaphragm removed to the parts store so both of you can have a physical reference to match up to. |
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Post by edfr on Jan 8, 2011 12:12:23 GMT -5
Very Good point Rockynv makes. If you have a Parts Store that you can go to I would take the Carb Off and take it with me to match up any parts I needed.
Lefty
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Post by 4drgsr on Jan 8, 2011 13:39:30 GMT -5
yeah im gonna do that. thanx for the advice guys.
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Post by sicily150 on Jan 8, 2011 23:01:26 GMT -5
The same thing happened to mine, its impossible to find one that will fit. Get on ebay and buy a new carburetor, they can easily be purchased for under $50.00
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Post by 4drgsr on Jan 10, 2011 2:05:07 GMT -5
The same thing happened to mine, its impossible to find one that will fit. Get on ebay and buy a new carburetor, they can easily be purchased for under $50.00 im gonna go get one tomorrow from the scrappydogscooters.com store. is abt 10min from my house so im gonna check it out to see if is the same as mine. all let u guys knw if it fits or not.. |
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Post by eldmon2008 on Jan 10, 2011 10:42:27 GMT -5
I just bought a new carb a week ago for 30 bucks off of ebay.
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Post by Fokus on Jan 11, 2011 0:00:53 GMT -5
yeah i notice the molded o-ring at the top it dont fit no more cause i took it aprt few time to cleaned and it used to be fine but this last time when the air box fall off and got water and i took it apart to see wat happen the molded o-ring at the top didnt fit no more and it look like got streach some how.. i was at www.scrappydogscooters.com they only show one Carburetor diaphragm for the 125 and 150cc scooter and when i went to the store the guy was been a d!ck and didnt wanna help me he say that they are so many different carbs and he didnt knw wat kind of carb i had even thought i toll em i had an all stock 152qmi motor and say they only had the Carburetor diaphragm for 24mm carb and if i get it i couldnt returned if it didnt fit.. how can i find out wat size carb do i have?? the guy is a d!ck but i have to get the part to get my scooter running again and is the only place in town that i can get from without order it online. For God's sake man use some sentence structure. Don't like the way he writes, don't bother to answer, move on, didn't seem to bother others? |
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Post by 4drgsr on Jan 11, 2011 12:26:09 GMT -5
I bought a Carburetor diaphragm and a pod air filter from the www.scrappydogscooters.com store yesterday. the diaphragm fit perfect and fix the problem!! the filter didn't fit so good, it was hitting with the frame but i was able to get in, i didn't have to change the main jet i just ajusted the needle, air and fuel screw and the scoot ran perfect. i was gonna take the restriction plate on the exhaust but it didn't have one.. i took the scoot to a scooter shop to get an exhaust gaskit, the shop works on scooter,quats and dirt bikes, i told him that i need a exhaust gaskit for a 125cc 152qmi motor, but the guy didn't know wat was that, so went to check out the scoot and he say it was a 150cc not a 125cc cause the kick star was to the front and the 125cc has it to the back. is this truth? he also say that the motor is not for that scoot, he say that someone probable switch the motor cause the scoot that i have should have a 50cc motor. to me it look all stock but i don't know too much.. is there a way to see if they swap it or is stock? |
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Post by edfr on Jan 11, 2011 16:03:19 GMT -5
4drgsr,
Nice going Bro!! Good that hear it is up and running again. To know what engine it should have, we need to know the model, year and if you could put up a picture of your scoot that would also help. Some where on the scoot it should some tags and or Vin number. Also on the Left side of the engine toward the front it should be engraved with what the engine is, a 152QMI or whatever.
Lefty
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Post by 4drgsr on Jan 11, 2011 17:11:37 GMT -5
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Post by edfr on Jan 11, 2011 17:50:22 GMT -5
I noticed that the primus next to the 125 can have three size engines, a 139, 152 and 157, so maybe you got lucky and they put in a 152qmi. They could of run out of 139s and put in the next bigger one.
Lefty
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Post by 4drgsr on Jan 11, 2011 18:18:05 GMT -5
thats nice!! yeah i thing i got lucky then... specially that i got it for $30 buck!!!
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