help a girl out w/ 00' KDX 220

R

redwood

Member

Sep 15, 2002

4

0

• Sep 15, 2002

• #1

i just bought a used kdx 220 2000 and i am having a problem with excelerating through 1st and 2nd... it doesnt hesitate it sputters like a miss through first and second then disapperes through 3rd and 4th .... so only initially. i changed the plug, what could be causing it? thanks everyone. :think:

 

sfc crash

Human Blowtorch

LIFETIME SPONSOR

Jun 26, 2001

1,824

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• Sep 15, 2002

• #2

try posting this in the kdx only forum. betch'ya those guy know.

 

I

IrishEKU

A General PITA.

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Apr 21, 2002

3,806

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• Sep 15, 2002

• #3

Ditto to SFC,

Check your clutch free play, A light clutch will cause the bog. Adjust the free play to like a nikle(sp) width and ride! Clutch slippage will cause alot of low end problems.......


My .02 Phillip

 

C

cr25096er

Member

Apr 16, 2002

707

0

• Sep 15, 2002

• #4

the powervalves r stuck ether open or closed. i know ive heard of this before and it was the powervalves.

 

D

DENNY

Member

Nov 24, 1999

218

0

• Sep 16, 2002

• #5

1. What carb do you have.
2. How many miles since the top end has been serviced.
3. What did the plug look like when you changed it.

The reason I'm asking these question is the 220 comes with a small bore carb and everyone replaces it.

 

R

redwood

Member

Sep 15, 2002

4

0

• Sep 16, 2002

• Thread starter
• #6

stock carb and i am not sure on the miles... the bike looks in really good shape... hardly any wear. the plug looked good, little oily but ok. it sat for a couple month before i bought it. it looked pretty new... so i do not think its the plug it self, maybe the powervalve or spark? i do not know... i would like to try things myself before i broke down and take it to the dealer...

thanks fellas...

 

2

250motoxer

Member

Apr 13, 2002

38

0

• Sep 16, 2002

• #7

So.... the bike seems to run fine everywhere else? ONly in first and second? Sounds odd... If the bike has sat for a little while, and sounds as thought it was barely ever used, I would start with taking apart the carb. Maybe its pretty gummy... Re-set the float height. Also while the carb is off check the reed valves. And ofcourse clean the air filter clean.

 

C

cr25096er

Member

Apr 16, 2002

707

0

• Sep 16, 2002

• #8

im telling u the check the powervalves. ive heard of this before.

 

B

BRush

LIFETIME SPONSOR

Jun 5, 2000

1,100

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• Sep 16, 2002

• #9

More likely than not it's a jetting issue. Stock jetting on a KDX is almost always too rich. See the responses in the KDX forum:

http://dirtrider.net/forums3/showthread.php?s=&threadid=61656

 

2

250motoxer

Member

Apr 13, 2002

38

0

• Sep 16, 2002

• #10

Right on BRush....I ride an 88 kx 250... I think it's pretty similar to your KDXs'. Kehin carb. ect I have it a little more sensitive than some other two stroke mxers I have owned...

 

D

DENNY

Member

Nov 24, 1999

218

0

• Sep 17, 2002

• #11

It is probably the needle and pilot jet but I would check the power valves just to make sure. Pull the plastic cover off the actuator and unbolt the power valve. This is a left hand thread 10mm nut and I hold the arm with a cresent wrench. Now see if the valves open and snap closed manually. As mentioned above Kawasaki jets the KDX very rich and if the previous owner rode it very much you may have 2 problems, jetting and dirty power valves. I'm riding my third KDX and one of them actually had the power valves installed incorrectly. The only way I found this out was to take the pipe off and look up the exhaust port.