Question about Kymco Pulsar Motorcycles

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I have a 2009 KYMCO 125 pulsar and cannot find a screw to adjust the mixture it is running very rich and wont rev. The spark plug soots up in quick time about5 mins. only 1 screw for idle adjust.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: No power on my Kymco Zing 125

Usually the main fuse is located within 12" of the battery. If the fuse is okay then check that the battery has the red wire on the positive terminal and that connections are tight. Check the wiring harness for loose connections. If your bike has a kickstand safety switch then be sure the kickstand is up when starting. Be sure the kill switch is in the correct position and that you have gas in the tank and the fuel is turned on.

Posted on Mar 14, 2009

cape cod bob
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SOURCE: rich mixture virago xv250

http://www.stadiumyamaha.com/pages/parts/viewbybrand/2/Yamaha.aspx

look up your bike here and i think it is number 13 on the diagram. which looks like its right by where the throttle cable connects

Posted on Mar 24, 2009

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SOURCE: My rear wheel doesn't spin freely after I had to

You have one or more sticking pistons in your brake caliper.

Posted on Jun 22, 2009

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SOURCE: Yamaha DT 125 1986 - High Revs when idling

There have an air leak between the carb and the cylinder and/or the head and cylinder. Old hard / cracked rubber fittings and O rings are usually the problem. When extra air gets into the system it leans the fuel mix and the high idle is the result. It also means the engine runs hotter. Also, cracked or broken reeds can be a source.
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Posted on Aug 10, 2009

Magaiver
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SOURCE: Fuel/air mixture screw. How many turns should the

3.5 turns out should fix it. Hope this helps.

Posted on Aug 11, 2010

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1 Answer

My spark plug is getting soot all over it for riding it up and down street. A friend said my idle is to rich..


firstly what make and model is it,and is it two or four stroke ? the mixture screw only adjusts the fuel air mixture up to around 3000rpm so if its sooting up the plug at higher revs i would suggest the air filter s blocked,the main jet is either loose or too big or the float height is set wrong,does it drip fuel from the carb at all ?

Nov 23, 2015 | Motorcycles

1 Answer

What is default fuel screw setting turn outside of pulsar model 2014


If it's running well, I'd put in fresh plugs and then try to "tune" it.
With the engine running at low to mid RPM lean it out until the revs increase, and then drop. Back off on the adjust until the RPM peak, then another 1/3 turn. Run for 5 to 10 minutes. Let lool, check spark plug for desired colour.

May 28, 2015 | Bajaj Pulsar 150 Motorcycles

1 Answer

Air screw setting


see the manual, it might tell you that it is factory set and should never need adjusting unless you need to change the screw.
but as a guide for air-screw adjustment you can start at 2 turns out from a light seat. what you are looking for is the fastest idle speed in the adjustment range then quarter turn in. after that you should read the spark plug when hot. before doing any mixture adjustment check to make sure the soot is from the fuel and not oil soot, oil soot feels greasy between your fingers and often results from worn valve guides / seals or/and worn piston rings/piston. Small engines get revved a lot and wear is quite rapid.

Aug 09, 2014 | Honda CBR 125 R Motorcycles

1 Answer

Can you tell me about the standard adjustment for the carburetor for pulsar 200cc if how many turn thanks.


There is only one mixture screw, it is the bronze colored screw on the left hand side of the carb.
Turn left to rich the mixture, turn right to lean it. "Standard settings" is 1 1/4 to 2 1/14 rounds out from a soft seat. (depending on altitude)
I recommend learning how to read your spark plugs for the best possible mixture settings. Remove both of the plugs and check their electrodes for color.
If its more on the light brownish side your bike is running on leaner mix if its way too much black your bike is running on rich mix. So ideally it should be dark-brown(almost black but not black!).
Good luck, i hope this helps.

Jul 05, 2011 | 2009 Bajaj Pulsar 200 DTSi

1 Answer

My craftsman chainsaw is pretty new, and it isn't starting properly. When it does start, it has a tendency to cut out during use. I adjusted the idle time, a few times, cleaned the air filter, and checked...


There will be three screws on the carb, the tick over screw, a L screw which ajust the mixture from idle to half throttle, ans a H screw which adjusts the fuel running speed, they are both fuel screws not air screws, start with a basic settinf of one and a half turns on each from closed, with the saw idling gently screw the L screw in, the revs will start to increse as the mixture weakens off, it will reach a point where it starts to die, at this point start unscrewing the L screw, the revs will increse again and then start to die because its too rich, now turn it in 10 minutes on a clock face, check that it revs cleanly,adjust the idle screw so as the chain does not rotate around the bar, the H screw controls the max rpm, this should be set with a rev counter, it should not exceed 12500rpm

Apr 21, 2011 | Garden

1 Answer

My spark plugs seem to soot up, is the mixture wrong. will the jets need setting. i have a heritage classic year 2000


Yeah the mixture is too rich.Didn't say but are both plugs sooty?Anyway,if jets have been ok then all they could be is dirty and you'd have other problems.Take air cleaner off and make sure choke plate is fully open with choke lever off.Adjust all the fuel/air screws for proper idle and throttle response.Check voltage of spark from coil.Then try differant heat ranges in plugs to get hotter fire.Just a thought.Are you sure it's soot and not oil residue?Oh yeah,when you have new plugs in before you fire it up wipe out the ends of the pipes,real clean.Then after it runs awhile look at the pipes.Sooty? gray?black?Gray or lite tan is best.Try heat ranges til you're happy.

Mar 20, 2010 | 2000 Harley Davidson FLSTC Heritage...

2 Answers

Bike keeps fowling plugs could it be the


usually 2 strokes foul plugs when the oil is two strong in my old bike i mixed the gas 40:1 try that and if it dosent work i would take it to your nearest dealer and get them to check it out

Feb 08, 2010 | 2003 kawasaki KX 125

1 Answer

In my honda xlr 125 i changed the main jet to #92 and slow jet to #35 is this ok? If so how can i tune the carb. I am from Sri Lanka. Its a tropical country.


The only way to know if the jetting is correct is to see how well it runs - and check the spark plug color.
You can start by warming up the engine and adjusting the idle mixture. Do this by turning the idle mixture adjustment screw (there are only two adjustment screws on the carburetor: one is the idle speed adjustment, the other is the idle mixture adjustment). Turn the idle mixture adjustment screw in or out until the fastest idle speed is attained. Then adjust the idle speed with the idle speed adjustment screw.
Now ride at full power and see how well it performs. If the engine cuts out or surges at full throttle, that means the main jet is too small. If the engine produces black smoke from the exhaust and doesn't seem to produce enough power, then the main jet is probably too big. Confirm the main jet correctness by looking at the color of the spark plug: white or light tan = too lean (main jet too small). Dark brown or black = too rich. Dark tan to brown color = perfect.

Nov 29, 2009 | 2000 Honda XLR 125 R

3 Answers

My honda 400 bros is not runing right 1 plug is wet the rest is sutted up as if runing rich what would think it is


Sooted plugs proves tht the air-mixture is too rich.(too much fuel going to the combustion chamber)
You have to set the air-mixture screw on the carb/s.
Clean the carb/s, replace 'inline' filter , if you don't have one ..install one, reset float level.
It's better to also check the valve clearance too.
Fit in new plugs (gapping them to specs.) and run the engine to its normal temperature thn set the air-mixture screw...standard setting....all the way in i.e. tighten it slowly to the end making sure not to damage the tip of the screw, thn 2 and half turns outwards to 3.
Start the engine....run to normal temperature and thn reset the air-mixture screw +/- either way.
Hope this helps!

Oct 24, 2009 | 1991 Honda NT 400

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