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adjusting the carb mixture

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richk
Two Stroke Sniffer



Joined: 02 Mar 2011
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PostPosted: 10:52 - 13 Jun 2011    Post subject: adjusting the carb mixture Reply with quote
my bike will only really run well with half choke all the time. the carb has been off recently, so im assuming i havent reset the mixture screw properly.

looking at haynes, it says just screw it in/out, but there seems no way to do this with the carb on the engine, cant get a screw driver in

i have a kinlon 125, and looks like a slide carb

are there any tricks
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stirlinggaz
World Chat Champion



Joined: 22 Jul 2007
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PostPosted: 11:19 - 13 Jun 2011    Post subject: Reply with quote
Which carb is it? pics?
is the mixture screw not on the bottom of the carb, facing towards the ground?
adjust using something like this https://cgi.ebay.co.uk/DRAPER-2-PIECE-PLAIN-SLOT-PZ-ANGLED-SCREWDRIVER-SET-/250628979303?pt=UK_Hand_Tools_Equipment&hash=item3a5aa6ba67#ht_1014wt_905
cheers,
GAZ
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richk
Two Stroke Sniffer



Joined: 02 Mar 2011
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PostPosted: 11:27 - 13 Jun 2011    Post subject: Reply with quote
yeah the screw is pointing down, that screw drivery thingy looks like the thing i need Smile sure i have one of those from an ikea set somewhere...

cheers
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Robby
Dirty Old Man



Joined: 16 May 2002
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PostPosted: 13:51 - 13 Jun 2011    Post subject: Reply with quote
It shouldn't need much force to move. I just use a screwdriver bit from a bit set and turn it with that.
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richk
Two Stroke Sniffer



Joined: 02 Mar 2011
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PostPosted: 15:26 - 13 Jun 2011    Post subject: Reply with quote
cool will give that a go. is it in or out to richen?
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bacon
World Chat Champion



Joined: 09 Jan 2009
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PostPosted: 15:54 - 13 Jun 2011    Post subject: Re: adjusting the carb mixture Reply with quote
richk wrote:
my bike will only really run well with half choke all the time. the carb has been off recently, so im assuming i havent reset the mixture screw properly.

looking at haynes, it says just screw it in/out, but there seems no way to do this with the carb on the engine, cant get a screw driver in

i have a kinlon 125, and looks like a slide carb

are there any tricks


I know nothing about your bike, but first check that you put it back on correctly, mainly no air leaks.

Assuming thats fine then I'd do as Robby suggested.
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richk
Two Stroke Sniffer



Joined: 02 Mar 2011
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PostPosted: 16:10 - 13 Jun 2011    Post subject: Reply with quote
ah an airleak, that would make sense. i will have a look. will the wd-40/carb cleaner trick (squirting some at the manifold) work on a bike?
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Rogerborg
nimbA



Joined: 26 Oct 2010
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PostPosted: 16:39 - 13 Jun 2011    Post subject: Reply with quote
Yup, that'll do it.

If you have one of the Mikuni / Den(h)i 26mm carbs with the choke lever on the carb itself, are you definitely flipping it down to turn it off? I only ask because after saying that upwards of a dozen times to other people, I forgot it myself after doing some work on my 125 and couldn't understand why it wouldn't idle with the choke "off". Embarassed
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Last edited by Rogerborg on 18:53 - 16 Jun 2011; edited 1 time in total
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bacon
World Chat Champion



Joined: 09 Jan 2009
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PostPosted: 16:06 - 14 Jun 2011    Post subject: Reply with quote
richk wrote:
cool will give that a go. is it in or out to richen?


Screw out to richen, if you are sure there are no air leaks etc.
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richk
Two Stroke Sniffer



Joined: 02 Mar 2011
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PostPosted: 17:17 - 16 Jun 2011    Post subject: Reply with quote
cheers people, will give it a go tomorrow Smile

are there any guides on tuning a bike?
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