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Post by takadi on May 26, 2011 16:12:14 GMT -5
I have a Diamo Velocity 150cc. I took off my carburetor and airbox and disconnected all the lines from them. Now I have a bunch of bolts, screws, and lines and I don't know where which one goes. I don't have an instruction manual and I can't find one online, but I figure most Gy6 150cc engines have the same basic design. Does anyone know where I can download or read a "universal" instruction manual for Gy6 150cc chinese scooters? The ones I've found online require payment
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Post by edfr on May 26, 2011 16:23:32 GMT -5
1. First thing is to put the Carb back. 2. Put the Air Filter on the Carb. Now all you have is attaching the hoses to the correct nipples. Here is a picture of some of the MAIN Hose connections around the Carb. Once you get the carb on You should take a picture of the hoses around the Carb and we can then tell you which hoses go where. Lefty This will help you get started.  |
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Post by takadi on May 26, 2011 16:35:11 GMT -5
Is there a thread you can refer me to?
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Post by sprocket on May 26, 2011 17:00:04 GMT -5
How hard can this be??!! Two clamps one on each side of the carburator... Doubt it will give the information you need but there are some GY6 engine links here...look hard there are manuals there too. scootdawg.proboards.com/index.cgi?board=talk&action=display&thread=4483I might suggest next time make a movie or take photos of how you take things apart and then view the movie/pictures to know how to put it back together...most cell phones can do this |
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Post by edfr on May 26, 2011 17:07:18 GMT -5
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Post by takadi on May 26, 2011 17:18:43 GMT -5
Okay I have some pictures here   Here's the airbox. What I have circled is a hole in which I have no clue what goes into it. Is there supposed to be a line that connects to it or a screw?   Here's the valve cover. There is a line that protrudes from that as well. Where am I supposed to connect that?    Last three pictures show the two lines protruding from the petcock and converging into one line. If you refer to Number 1 in the last picture, it shows that I have taken that line that came from the petcock and fastened it onto the protrusion on the lower right side of the carburetor. I need someone to double check if I did that correctly. Number 2 comes from the ACV valve and splits off into Number 3 and number 4. I have connected number 3 to the intake manifold but I have no idea where number 4 goes. Finally number 5 is the line from the carburetor bowl, which I also don't know where it goes. |
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Post by takadi on May 26, 2011 17:23:44 GMT -5
Argh okay it won't allow me to upload pictures. I'll try to upload them later
Thanks Lefty for the link and pictures
Sprocket...uhh yeaa. ...no thanks
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Post by edfr on May 26, 2011 17:23:50 GMT -5
Takadi,
No pictures showed up.
Don't worry we will tell you where they go. As long as you show us the area and hoses we know where they all go.
Lefty
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Post by sprocket on May 26, 2011 17:24:56 GMT -5
Line 5 just hangs down, or it attaches to this thing on the CVT this is the float drain...some scooters have the thing like the picture others just let the hose dangle Attachments:
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Post by sprocket on May 26, 2011 17:31:47 GMT -5
The line from the valve cover is the engine vent and it usually goes to a nipple on the front to the air box... or you can put a fuel filter on the end and just zip tie it to the frame up high. This is probably the best fix because they get plugged when attached to the airbox. Here is how the petcock connects. The fuel comes in from the fuel filter or the tank... it goes out to the left side barb on the carburator, just above the float bowl Number 2 from the de-acceleration valve (carb right) goes to the T So Number 3 from the T goes to the petcock (center nipple) and number 4 goes from the T to the nipple on the intake manifold in your case... I think that has it... Attachments:
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Post by takadi on May 26, 2011 17:48:43 GMT -5
There we go, pictures uploaded
Scoot doc won't let me access that link for some reason, by the way
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Post by takadi on May 26, 2011 18:05:12 GMT -5
By the way, if some of you are confused, what I have there is a brand new carburetor that I just bought and it came with all of its lines and the auto choke attached to it. Though I tried to make of it not happening, it might be possible that I have more lines than I need
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Post by sprocket on May 26, 2011 18:26:25 GMT -5
OK the pictures help...
3,4,2 are vacuum
5 is as before.. does nothing - float drain
3. goes from the T to the intake elbow - main vacuum line
2. goes to the center of the petcock - petcock vacuum
4. goes to de-acceleration valve - de-accelerator valve
1. is fuel intake...to the carb
the valve cover line attaches to the airbox...
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Post by edfr on May 26, 2011 18:54:14 GMT -5
Takadi,
NUMBER 5 on the last picture is your CARB BOWL DRAIN HOSE-That just hangs down.
What appears to be connected WRONG is NUMBER 1- That Line should be the TOP HOSE from your Picture of your PETCOCK. That line should go from the Petcock TO the FUEL FILTER THEN TO THE CARB NOTHING ELSE SHOULD BE CONNECTED TO THAT LINE.
The other HOSE FROM YOUR PETCOCK--The HOSE that is connected to the BENT NIPPLE on the PETCOCK or the Bottom Hose is YOUR VACUMM LINE- That should be connected to ONE OF THE 'V" nipples on the "Y" CONNECTOR - Then the SINGLE NIPPLE on the "Y" a HOSE should be connected to it AND THEN TO THE INTAKE VACUMM NIPPLE.
Can you make sense of what I wrote, take a look at my Picture my picture has "T" not a "Y" THAT IS ALL VACUMM LINES no fuel lines.
Lefty
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Post by takadi on May 26, 2011 18:56:23 GMT -5
Okay, am I doing this right?   |
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Post by sprocket on May 26, 2011 19:01:01 GMT -5
Yes that is where the valve cover line goes.. as you have marked...
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Post by takadi on May 26, 2011 19:07:30 GMT -5
That's really strange about number one. I bought my scooter used and that's how it came like. Two lines coming from the two nipples of the petcock converging into one line through the Y connector. Are you saying the previous owner messed around with it and did something wrong? It seems like the lines are on backwards or something
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Post by sprocket on May 26, 2011 19:10:29 GMT -5
Get rid of that plastic Y in the red circle Get rid of the lines marked in RED Blue is the fuel flow. Attach the X at the end of the blue hose to the X on the carb.. You should be good to go... Attachments:
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Post by sprocket on May 26, 2011 19:25:22 GMT -5
Yup.. look at the picture I posted of the petcock. The 'in' line and the 'out' line are straight across..
The one over to the side is blank. It probably has no hole, or the guy drilled it out...
Disconnect the line from that and get rid of the Y etc... you don't need two fuel lines.
If gas does come from the side nipple, just plug it by cutting a short piece of hose and
fold it double and zip tie it so there are no leaks...
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Post by takadi on May 26, 2011 19:29:05 GMT -5
Okay, so the vacuum lines go like this right?  |
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Post by takadi on May 26, 2011 19:32:47 GMT -5
I don't think my particular petcock has an in and out line laid straight across like the picture you showed me. If you look my pictures above, it only has two outlets
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Post by edfr on May 26, 2011 19:39:19 GMT -5
Let me ask one question, Does your CARB have a Nipple ON the other SIDE where the Thorttle cable hooks up to? IF it has a NIPPLE on a round Diaphgram piece that has two screws holding it THAT ALSO NEEDS VACUMM.
Lefty
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Post by takadi on May 26, 2011 19:50:36 GMT -5
Yea lefty, what you are describing is what I attempted very poorly to draw in the above diagram. That is the ACV correct? Yes there is an outlet on there. Since that's the case, is the diagram I drew above correct?
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Post by sprocket on May 26, 2011 19:56:24 GMT -5
SOOOOOOOOOOORRRY
You have a tank mounted petcock. This is different.
Attach the hose that the fuel filter is attached to, under the tank to the carburator inlet nipple.
Attach a vacuum line that is on the bent nipple to a vacuum hose.
Dump the rest of the sh^t, the extra line, and the Y
I think lefty is talking about your line number 4
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Post by edfr on May 26, 2011 19:58:15 GMT -5
RIGHT ON, the Petcock and ACV decelerator need Vacumm , YOU GOT IT MAN. Hook that sucker up and see if she will run.
To get it to start the fuel ratio screw should be turned out about 2 1/2 turns then you can find tune it after the engine idles for about 5 minutes.
Lefty
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Post by sprocket on May 26, 2011 20:13:36 GMT -5
Here hook it up this way... it will run.. get rid of the rest attach the valve hose to the air box Attachments:
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Post by edfr on May 26, 2011 20:17:43 GMT -5
Damn Sprocket, your a fast drawer, I was doing the same damn thing(HAHA).
One correction though HE AS A "Y" which it is best to Connect the ACV and the PETCOK to the "V" nipples and the Bottom of the Y to the Intake Vacumm manifold.
Lefty
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Post by takadi on May 26, 2011 20:51:22 GMT -5
Thanks so much you guys, I think I got this. The only way to tell for sure is to see if it works when I connect everything tmw. Man, the previous owner just did a number on this poor bike
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Post by edfr on May 26, 2011 21:42:05 GMT -5
Takadi,
Good luck tomorrow, let us know how it works for you. It should work everything now is connected correctly so now the only thing would be to adjust the Fuel Ratio Screw and maybe you have to do a Valve Adjustment on the scoot.
Lefty
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Post by sprocket on May 27, 2011 11:45:56 GMT -5
HAAAAA... you know... a 'Y' is just a 'T' that has his hands in the air... like during a stick-up!
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