Question about 2003 kawasaki KDX 220 R

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Pinging noise at high rpm

I have a 2003 KDX 220. I use a BR8ES spark plug for slow, low rpm trail riding to avoid fouling out the plug. I heard a pinging noise at high rpms so I changed from an BR8ES to a BR9ES spark plug. I do not hear the "pinging", but I still think there is noise like something is loose at high RPM. I burn premium at 40:1.

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Try mix of 32:1 .i use b8egv or b8egvx plug .

Posted on Jun 16, 2009

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You could have fuel with to low of octane rating.

Posted on Jun 01, 2009

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1 Answer

Pings when hot 3500rpm


Hi Anonymous, start by switching to high octane premium fuel, Chevron, Mobil, Shell, ect. ethanol is not a friend of your engine. Use only Harley Davidson 20w50 Syn 3 oil. Install an oil cooler, engine oil temperature should be 180 to 220 degrees. Usual suspects for pinging are as follows:
1. Fuel octane rating to low.
2. Faulty spark plugs.
3. Incorrect spark plug for the type of service.
4. Excessive carbon deposit on head or in combustion chamber.
5. Ignition timing advanced due to faulty sensor inputs (MAP, CKP, CMP).
For a possible prime suspect please visit website below:
Harley Trouble Codes
Good luck

Mar 22, 2014 | 2009 Harley Davidson FLHR Road King

2 Answers

1996 kdx 200, starts good, boggs out and shuts off while riding like it is running out of gas. any ideas?


my 1998 kdx 200 had the same problem last week. I know exactly what the problem is. My air filter was so clogged with dirt,oil,gunk, that there was absolutely no air or very little mixing with the fuel that it just refused to run. I fouled 3 plugs trying to make it back to campground. I also had black gunk just a dripping from my exhaust which has never happened before, but since it wasnt getting any air it was running so rich. At first i thought that i got water in my carb or fuel lines somehow,cause we were going through some nasty deep puddles. when i got to camp and removed my seat and saw my air cleaner i knew exactly what the problem was. I cleaned out the air cleaner and she ran again...but just like you stated, on the trail my bike acted like i was running out of fuel and just stalled. wish it wasnt when i was doing about 35 but ya know how it goes...i let my bike sit for 5 min, cause wouldnt immediately restart, then it would start. I would make it another 500 yards and stall again. confused i switched tank to reserve, still had plenty of fuel but i was stumped. then eventually i would foul a plug but i always carry 3 plugs even though i make it 2 seasons on 1 plug....so im 99% sure thats your problem....

Nov 30, 2012 | 1998 kawasaki KDX 200

1 Answer

I have an 04 husky cr 125 and the fuel ratio i had is 32-1 and it fouled on me! i just go around the yard but sometimes on trails. should i go to a 40-1 ratio? or a 50-1 ratio?


Some guys will tell you to go to 50-1. Don't. 40-1 would be okay. If that doesn't stop the fouling, go to a hotter spark plug. An example would be BR8ES to BR7ES. The lower the number, the hotter the plug. By the way, you ARE using two stroke ENGINE oil and not MOTOR oil aren't you??? Please rate my answer.

Aug 15, 2011 | 2004 Husqvarna CR 125

1 Answer

I have a 2004 CR125R that i baught in 2006 brand new it has less than 20 hours on it. ever since i've got it, it hasn't liked anything other than high rpm/powerband...if im just riding along at...


This sounds like a problem with "idle mixture" There is usually a simple screw with a spring around it on the carb to adjust it. With the engine running warm and idling, be sure that the choke is wide open, and turn that screw in (clockwise) a half a turn. From there, fine tune clockwise to the point that the engine runs rough or 'surges' . Then back it out counterclockwise ¼ turn. That usually gets the fouling and poor running back to normal.

Apr 03, 2017 | 2004 Honda CR 125 R

1 Answer

What causes a Kawasaki 185 Bayou to miss at high rpm?


spark plug is too hot for the bike , change for a cooler one .
flotter in the carbi may be stuck or needle in the carbi may be dirty or wrongly set .
the bike could starve for full at high revs

Sep 26, 2009 | 2003 kawasaki KDX 220 R

1 Answer

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


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

Jul 01, 2009 | 2003 kawasaki KDX 220 R

5 Answers

I have a 2005 kx 250 2 stroke and it keeps eating plugs


NGK brand spark plug BR8ECMVX is the stock plug for the bike. The proper gas / oil mix is 32 to 1. That means 4 ounces of 2 stroke oil per gallon of gas. The posting was not clear as to just what the problem is. If you are burning up plugs there may be a air leak in the intake system making the bike run lean. A lean fuel mix runs hot.

Jun 24, 2009 | 2005 kawasaki KX 250

3 Answers

I have a 2003 kx250 i run it with mc1 50:1 and when i ride it slow around my campsite it will foul a plug and when im out in the trails getting on it hard it will run hard what sould i do so i dont foul...


I would stay with the same heat range(BR8) to stay on the safe side. You didn't say if when you are at the camp sight the bike is cold and just off the truck or warm and right off the trail. But usually alot of 2strokes need to be cleaned out when their being warmed up or they can foul a plug. Get it started, blip the throttle a few times to get some heat in the cylinder and then hold it open until you hear it rev faster and run smooth. Thats usually enough.

Jun 19, 2009 | 2003 kawasaki KX 250

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