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Go Back   MotoredBikes.com: Motorized Bicycle Forum > Garage & Tech/Mech Help-detailed & specific tech talk > 2-Stroke Engines


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  #1  
Old 04-23-2007, 04:05 PM
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srdavo srdavo is offline
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Default Carburetor Assembly Pics

the not-so magic carb

okay...let's take this puppy apart


here are a couple views of the brass slide/needle & float/bowl





full choke



no choke



assembled pic of slide/needle



cable removed. note the funny slotted washer, must be on top of the needle and clip. this allows the spring to return the needle down.



here you can see the needle valve assembly.



thanks to Tom in WV for the following quote:

Think of it as a tiny toilet bowl . when you flush (open the throttle) the float allows more water (fuel) in to replace whats been used. The purpose of the float mechanism is to keep the toilet from overflow (flooding)It only lets in whats needed as its used up. The toilet is remarkably similar to the carb except that the carb is variable speed and the toilet is all at once. This could be under the heading of "strange but true"
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Thanks, Steve
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Old 03-09-2008, 05:46 PM
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Alaskavan Alaskavan is offline
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Could someone post a good pic of the business end of the throttle cable itself? I'd like to see if I can make one up. I'm guessing it's just a small barrel, like the lever end of a 10-speed shift cable?
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  #3  
Old 03-09-2008, 06:19 PM
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Click image for larger version

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very small barrel!
barrel actually fits up inside the brass slide.

the length of the cable housing is pretty important, too. not a lot of adjustment there.

good luck & hurry......

I'm getting low on throttle cables!
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  #4  
Old 03-09-2008, 06:28 PM
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Thanks Dave. Yep. Looks like the small barrel for a shifter. So I should be able to use that end, cut the cable to length, and use a little brass electrical screw clamp button for the other end. Worst case, I may have to pour some lead.
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  #5  
Old 03-10-2008, 03:21 PM
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Large Filipino Large Filipino is offline
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Thanks for these pics Srdavo! My new modded tank I installed then I put my filter on backwards. Then I thought I cleaned it all out but apparantly not cause my bike would run for about 2 miles and quit. Then I hold down the tickler till gas comes out then it's 2 miles again then nothing.
I bet I got crud in that toilet valve keeping things from flowing right.
This carb is so simple. I'm sure I can find this crud.
Thanks again!
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Old 03-10-2008, 03:49 PM
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Quote:
Originally Posted by Alaskavan View Post
Could someone post a good pic of the business end of the throttle cable itself?
hey Van....I guess these cables have 2 business ends

Click image for larger version

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ID:	5119 Click image for larger version

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the larger barrel is for the throttle control......the small barrel goes to the carb.
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Old 03-10-2008, 03:57 PM
mshagg mshagg is offline
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Interesting pics, is that the typical carby one expects with a happy-time style kit?
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Old 03-10-2008, 08:12 PM
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Quote:
Originally Posted by mshagg View Post
Interesting pics, is that the typical carby one expects with a happy-time style kit?
My Kings "80" came with that exact type of carb, so, I think it is.
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Old 03-10-2008, 09:37 PM
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Thanks again Dave. I have an idea of how I can make my own cable. It should be pretty simple. If it goes well, I'll post it.
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  #10  
Old 03-15-2008, 09:13 PM
Mary Mary is offline
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Default Thanks, Dave for the pics

Thanks, Dave for the pics and explanation.

And thanks to you, Feter for starting this thread.

Mary
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