Question about 2003 kawasaki KDX 220 R

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2001 kdx 220 starts idles great no power stalls out , floods

Have cleaned carb , cleaned and inspected reeds , took off air box cleaned out and washed air filter , removed and inspected exhaust .
starts fairly easy idles great when you give any throttle it bogs and stalls , at that point you have to dry off the plug to get it to start again ?

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Use a hotter spark plug. They do have different heat ranges.

Posted on Jul 01, 2009


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2 things. come to mind.
i check the distributor advance works to spec with my timing light (strobe)
if that is ok, its a carb issue.

carbs fail for many reasons, (mostly gummed up inside)
we clean them. that fixes them. (with a kit)
I only have this for symptoms, and is not good.
does the engine have full power up any hill wide open throttle
is the Hesitation only a short time then catches up.
The carb (not stated P/N or brand) has jets, the if gummed up
will cause lean running.
so will any power valve jet.
ever tune it up. new spark pats, rotor all the way to spark plugs.
bad spark , loves to fail under load, that is its , magic.
  1. low float bowl levels.
  2. low fuel pressure causing above,
  3. bad float valve , sticks closed and starts bowl of fuel, causing #1
  4. Gummed up jets.
  5. Gummed up emulsion tubes in carb body.
  6. Choke stuck on, causing flooding,
  7. Choke dead causing hard starts . (stuck open)
  8. power valve clogged.
  9. Highspeed accelerator pump bad, causing only sight hesitation.

my guess? based on 1 word "stall" its #1 to 3 or 6.
black spark plug tips would be #6

or if black sparks, the float valve is stuck open flooding engine and stalling.

we can go for days on carbs. but will not.

Mar 19, 2014 | Jeep Cherokee Cars & Trucks

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Carburetor flooding

make sure all filter r clean or new

Jan 07, 2014 | 1990 Toyota Tercel

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1987 60 hp mariner idle & high idle great, stumbles/ stalls in gear on take off, head gasket or poor idle adjustment?

Clogged idle circuits in your carbs. Clean jets and passages.
You can try suck dirt out, therefore: Screw the idle mixture screw out ( almost totally ), give full throttle ( 1 second ) and then hold your hand against the carb air intake.
This will give maximum suction and can suck the dirt trough tje circuits.
Also, first drain the carb(s) to be shure there is no water in it...

Aug 22, 2017 | Light Boating

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2005 Kawasaki KDX 200 power band flat

Hi, Cfmotox for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere zero $0 you can download another one.
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KDX 220 power valve KIPS test
KX250 Power Valve
Kawasaki KDX200 Service Manual
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2005 Kawasaki KDX200 Owner Manual

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2006 buell blast struggles to start and barly idles

Then your carb IS NOT CLEAN or IS NOT ADJUSTED PROPERLY. Flooding is a direct result of your carb having issues.

Mar 08, 2012 | 2002 Buell Blast

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I have a 2010 ktm 65sx ran like a top last year this spring got it out ran good all of a sudden bike starts good but it seems like it starves for fuel on the low end when it gets in the power band it takes...

Thank you for contacting FixYa with your inquiry.
Low power or stalling at start is usually air/fuel related. You have taken care of most of the things that effect the bottom end power band. Some other things you might consider:
  1. Check the air vent tube on top of the tank to make sure it's not pinched or restricted.
  2. Clean the fuel tap. May have sediment or debris. Some have a filter screen. Clean it.
  3. Clean the air filter and air box. Check the rubber boot for cracks or air leaks. Clamp??
  4. Exhaust system - Check for leaks or fiber fallen from the muffler.
  5. Check the diaphragm or reed valve for cracks or reed problems
  6. Check the timing or fault with the ignition system. Is something loose.
  7. Screw in the idle jet all the way and back it out to 1 1/2 turns.
Jetting: (Tons of options with a Mikuni) In general, the main jet is for high rpms and top speed running. Needle effects the mid range to about 3/4 throttle. Idle jet effects the bottom end. 3 sizes exist 20, 25, 30.
Drill down from this link for part numbers: 2010 > 65 SX > ENGINE > CARBURETOR
Let us know if we can provide further information.
Kind regards,

Jul 18, 2011 | KTM 300 EXC Motorcycles

1 Answer

Kdx 200 running lean or rich no not know.

may want to look at changing out the reeds

Jun 03, 2009 | 1998 kawasaki KDX 200

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Starts only with new plug,sometimes (1984 kdx)

check engine oil and change the oil seal of engine

Apr 02, 2009 | 2004 kawasaki KDX 220 R

1 Answer

Low power stumble at idle to low rpm

try placing the reed spacer between .reed assembly & cylinder, also try an adjustable ignition stator plate, set at +4, k & n air filter, open air box.replace T.O.R.S. eliminator system w/ a cap & cable, and idle air screw install kit, also a pipe tuned for more torque(bottom -end/mid range) blasters dont have a lot of power on bottom end and the engine needs to rev to hit power band.cylinder porting,240 bigbore kits, & +4mm stroker crank assemblies are good performance options.

Feb 22, 2009 | 2003 Yamaha YZ 250

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