Carb Float Bowl Removal By merlindad5262 (Read 2,277 times)

[jct842]

Time to start running some seafoam in the gas too. The crapahol they sell in place of gasoline has a habit of absorbing water out of the air then it goes to gel. When you start running out of gas as you open the throttle you might look at fuel pump or vacuum petcock/ If you have a slight vacuum leak it can cause low fuel delivery. And as said before you have to have an airfilter in place and working.

[merlindad5262]

I am thinking that WE, Alleyoop & myself, need to exchange 'hot-line' phone numbers-like the Prez has with other World Leaders, because this post has grown to the point where the work involved to "GOTO" the next step is too much to warrant another post?

I am humbled, again by an Internal Combustion Engine's need for further investigation as to why it fails to perform correctly.  It is still performing terribly even after I followed the carb tuning instructions that was linked to this post, Alleyoop - Thanks for that, BTW.  I became over-whelmed after spending too much time and realizing that I still had a problem.

_
I have given myself a sleep session to clear my mind, I shall continue searching for the ROOT CAUSE.  I plan to remove the carb and disassy it to facilitate re-inspecting the component parts for contamination, defects, or reassy errors.  I will add to this thread as to what I discover.

[Bashan]

So is the problem bogging or what? As Alley said that's usually too much air from an air leak or improper filter. So check your vac lines and make sure there's no leak and make sure the induction system is intact with no leaks or open nipples. Some pix would help.

[Alleyoop]

Ok think it is time for some pictures of the top of the motor around the carb and hoses.
1. If it always has a hard time starting something is NOT right. When tuned right and everything is nicely sealed(VACUUM) and good (Fuel Delivery) they motors should start with 1 or two SHORT hits of the start button. If you have to crank and crank and crank then something is amiss.

2. Have you adjusted the Valves? if not Set them both to .003 inchs and make sure it is at TOP DEAD CENTER when doing this.
Align the Cam sprocket like this then you can adjust both at the same time.


3. Also if it starts to bog about half throttle check the DIAPHGRAM for rips and or pin holes or leaking the rubber is not seated in the top grove of the carb and the cover is not sealing. Which will cause the Slide not to rise and pull the needle out to allow more fuel so you get lots of air not enough fuel.




HERE IS HOW TO POST PICTURES USING THIS HOST. IT IS EASY AND FREE:

1. Click on this link:
tinypic.com/index.php

2. Click on Browse, that will link to your computer.
3. Find what you want to load.
3. Click on the name of the picture
4. Click on OPEN
5. Click on UPLOAD
6. Click on the LINK that starts with IMG.
7. RIGHT CLICK and CLICK on COPY
8. THEN Come here to your THREAD ON DOC.
9. RIGHT CLICK and CLICK ON PASTE.
Alleyoop

[merlindad5262]

I am still work-stoppage on the repair. The weather has been spotty rain and I do not have a garage to work in so the great outdoors has to be contended with. I posted a number of photos which my son did a fantastic job of taking the pics. I don't see them linked so I 'suppose I will re-post them, after I review all of them and select the ones that seem to be the best. I am antsy to get through this and have the scooter up in time to start enjoying the new year!!!

[merlindad5262]

Here's relative pic links:













I have more pics but they are different views of each of the parts included above. The project is still ON THE BENCH and I am awaiting any feedback from the folks who choose to submit them.

[merlindad5262]

So,  I gave up on trying to repair my carb and bought a new one.  I R & R'd the component and after discovering that a method for 'priming' the new one was needed, I had the engine running after two kicks!

METHOD USED TO 'PRIME' THE CARB : 

1. Open the float bowl drain by loosening the screw that is located in the component which is connected to the end of the Float Bowl Drain Hose, 2 turns.Remove a vacuum hose from the intake manifold.  ENSURE THAT THE FUEL DELIVERY HOSE IS ATTACHED TO THE CARB'S FUEL CONNECTION.

2. Disconnect a vacuum hose from the intake manifold - (there are two to choose from).

3. Apply a vacuum to the end of the disconnected vacuum hose and maintain until fuel escapes out of the Float Bowl Drain. 

4. Reconnect vacuum hose.

5. Close the Float Bowl Drain by tightening the screw 1/16 turn past where it seats.

6. Start engine and inspect for any leaks.

This method was what I completed to FINALLY get my Tao Tao, to Go Go.

[cyborg]

Great !!!!

[Guitarman]

Too bad they don't come with priming bubbles like a weed whacker does. That would be too easy.