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Post by sifu on Oct 31, 2009 0:20:24 GMT -5
So i've been searching around trying to find details on how to adjust the needle in my carb as it appears, I "may" be running a bit rich hence me wanting to lean it out about. Searching around I found these two pages; halley.deviantart.com/art/GY6-50cc-Carburetor-91462914and this one www.scootusa.com/adjust_carb.htmNow my question is, on the second page it shows a needle with some grooves in it along with a circlip. HOWEVER, my needle is more like the one on the first page with a big "head" and like 2 grooves under it, no circlip there though. How would I go about to adjust my needle if there is no circlip and not as many grooves (if they are even grooves at all)?? |
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Post by felliott on Oct 31, 2009 18:55:05 GMT -5
If it is running rich and you are at wide open throttle you need to adjust the main jet not the needle. The needle works between 1/4 to 3/4 throttle. Most of the time the needle is to lean that is why you cannot adjust it leaner. Try to find a older carburetor and get the adjustable needle out of that. Just a throught, do you have a friend that has a adjustable needle you can barrow to see if that is your problem.
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Post by sifu on Oct 31, 2009 22:36:40 GMT -5
The carb itself looks different where the diaphragm sits (round vs round with a flat edge) so I dont think swapping out the needle alone will work.
Is there any other way to adjust this? Whats this I read about a tab you can bend to adjust the mixture? Anyone have a pictorial guide? I read alot of articles but theres nothing that shows it clearly (sorry Im a picture person)
Thanks
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Post by felliott on Nov 1, 2009 15:14:06 GMT -5
The needles will fit from one to the other. I have done this many times. Of course this does not mean there is something different on the market. I would like to see if you could try it and then you will know for sure.
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Post by sifu on Nov 2, 2009 0:10:40 GMT -5
Thanks for the information, does that mean I just put the needle with the circlip on top of the plastic piece with the "3 legs" ?
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Post by felliott on Nov 2, 2009 15:35:52 GMT -5
No, the needle goes under the plasatic piece. If it was on top there would not have any thing to hold the needle in place.
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Post by sifu on Nov 3, 2009 0:15:04 GMT -5
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Post by onewheeldrive on Nov 3, 2009 0:50:52 GMT -5
Does your plastic piece have a hole in the middle? |
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Post by sifu on Nov 3, 2009 0:56:03 GMT -5
Yes it does, mine looks exactly like the one in the first link posted.
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Post by onewheeldrive on Nov 3, 2009 1:06:53 GMT -5
Yes it does, mine looks exactly like the one in the first link posted. Mine doesn't. I haven't read too much about those needles. I've never had one like that. Maybe the others will work. Have you tried a hardware store, to find a circlip? You may try and experiment with one if you can find one, that is--if those really are grooves. Not sure if I can help..  |
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Post by goldcoast on Nov 3, 2009 17:30:23 GMT -5
You might be surprised what you can find at Lowes in the hardware section!
Jim
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