03-23-2016, 09:36 PM
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#1 |
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Join Date: Nov 2015
Location: Sydney,New South Wales,Australia
Posts: 35
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Cfmoto vnight carbureter adjustment
Wondering if somebody could give me some advice on carbureter adjustment.The idle RPM is outside specs and want to adjust it.There is only one adjustment screw and I don't know whether this is for idle speed or mixture.Also on the left handlebar is from what I presume is a choke lever connected to a cable running down to the carbureter as well as the throttle cable.Could somebody be able to explain how it works.Also would anybody have any idea what brand of carbureter it is?
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03-23-2016, 10:21 PM
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#2 |
Join Date: Mar 2008
Posts: 2,436
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Don't know what's in ur bike...
Domestic official record http://www.vecc-mep.org.cn/static-we...5/OIII-MT1.pdf is Mikuni VM22 from Chengdu http://www.mikuni.co.jp/e/overseas/china.html | http://item.taobao.com/item.htm?id=520276978165
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Last edited by humanbeing; 03-27-2016 at 10:39 PM. |
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03-24-2016, 08:31 AM
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Join Date: Nov 2015
Location: Sydney,New South Wales,Australia
Posts: 35
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Quote:
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03-24-2016, 05:29 PM
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#4 |
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Join Date: Mar 2008
Posts: 2,436
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Idle speed ONLY.
Air screw's position is as http://translate.google.com/translat...blog-post.html
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Last edited by humanbeing; 03-29-2016 at 02:40 AM. |
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03-24-2016, 09:56 PM
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Join Date: Nov 2015
Location: Sydney,New South Wales,Australia
Posts: 35
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Quote:
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03-24-2016, 10:30 PM
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Join Date: Mar 2008
Posts: 2,436
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Quote:
If too much hassle... Bin it & fit a Keihin clone is 1 of the quick chinese solution --- Float height ??? series http://translate.google.com/translat...p%2F3405033763 | http://translate.google.com/translat...75877-1-1.html
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Last edited by humanbeing; 03-26-2016 at 06:31 PM. |
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03-25-2016, 04:43 PM
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Join Date: Nov 2015
Location: Sydney,New South Wales,Australia
Posts: 35
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03-25-2016, 06:18 PM
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#8 |
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Join Date: Mar 2008
Posts: 2,436
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http://zhidao.baidu.com/question/107073049.html [SAME vm22 but euro2 version]
Q:My Suzuki "GSX-3C" only one carburetor idle adjustment screw, no adjustment screws mixture... A:GSX125-3C using a plunger type carburetor, which mixed gas adjustment screws are located directly below the front side, and close the intake hose between the carburetor and the engine ... concave, so only crawl under or removing the carburetor in order to see clearly Its adjustment method is screwed to the end and then back on 1.5 to 2.5 turn === 2.25 was quoted in some Suzuki forum. If in doubt, search pit bike related in 'net will give u the idea...
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03-26-2016, 06:21 AM
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#9 | |
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Join Date: Nov 2015
Location: Sydney,New South Wales,Australia
Posts: 35
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Thanks again humanbeing for all your help. Last edited by Engineern6719; 03-26-2016 at 05:52 PM. Reason: More information |
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03-27-2016, 12:44 AM
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Join Date: Mar 2008
Posts: 2,436
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HK, southern Guangdong had a few days <15ºC in a year only. I don't care which is which as long as it works [不管白貓黑貓，抓到老鼠就是好貓 | It doesn't matter a cat is black or white, as long as it catches mice] in cold days...
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03-27-2016, 09:51 PM
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#11 |
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Join Date: Nov 2015
Location: Sydney,New South Wales,Australia
Posts: 35
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When I checked the air adjustment screw it appears to have worked its way out.There's a paint mark on the body of the carburetor and on the head of the adjustment screw and they don't line up.After screwing in the screw to align the two paint marks the engine idles (when hot) at 1500-1600 rpm plus the choke worked when starting it cold.
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Linear Mode
