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My xr200r cdi backfire when closing the throtle

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  • pierre
    pierre Nov 17, 2013

    Thank you, well appreciated and will try that.


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Is it carburetor? Richen fuel mixture screw 1/2 - 1 full turn

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1 Answer

Xr200r 84

the aftermarket cdi should have 2 connectors which will connect between the factory connectors ,
stay away from the bare wire CDI`s bad news

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2002 Honda XR 200 CDI box location

Hi, Anonymous for this scenario you will need your service, parts fiche, and owners manual if you can not find the best tool you ever bought for your Honda, despair not, for a mere $10 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
2002 Honda XR200 CDI box location Google Search
Testing Honda Coils and CDI boxes
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Mar 14, 2014 | 2002 Honda XR 200

1 Answer

Simple as that 1985 honda xr200r stator has oil should it have oil there is no spark i thought it was the cdi box but decided to check stator and was full of oil

There is always some oil in there, it shouldn't be full of oil. But there will be a small amount.
Although this isn't for your bike it gives trouble shooting options for a CDi system.

Aug 07, 2011 | Honda XR 200 Motorcycles

1 Answer

This is a 1984 1200 that will not start and back fires thru the exhaust and carbs

Back fire is an indication that the bike is firing incorrectly.
Your timing chain is probably stretched, due to the year.
inproper valve timing due to stretched timing chain will make the bike backfire.

I have other thoughts like stuck valves or inproper sparkplug wires on wrong plug,
i always start with easier and less expensive method.
1st check your sparkplug wires to make sure they are on the right plug.
2nd pull sparkplugs and do compression and leakdown test.
3rd pull componets to see if valves are opening and closing, (valve clearance check)
4th if valves are good, then timing chain is probably stretched.
5th if timing chain and timing marks are good, and valves are good, then proceed to
testing the signal generator to make sure your getting a signal to the cdi,
6th if you have a signal to cdi, the cdi tells which coil to fire. either # 1&4 or # 2&3.
if signal generator is working, but coils aren't firing right then its the cdi.
obviously your coils work because its firing, just back firing.

Thats all it could be from easiest to hardest.
Good luck and have a great weekend.
Big Al

May 21, 2011 | 1987 Honda GL 1200 Aspencade Gold Wing

2 Answers

My Honda St1100 2001, loses the RH 2 cylinders after high speed use (80+)then backfires, after that its usually OK,replaced the plugs and the Coils. Still the same

The CDI controls the firing order of the coils independantly of each other, if you are getting backfiring then that means that there is enough fuel getting to the combustion chamber, it's just not igniting when it should, which can be caused by faulty spark plugs (you've replaced) faulty coils (you've replaced) the only things left are the CDI and the ignition pulse generator, either of these could be faulty but the CDI is the most likely, unfortunately you can't really test it, the only thing you can do is to swap it with a known good one. Just a thought, check connectors for corrosion.

Mar 22, 2010 | 1991 Honda ST 1100 Pan European

1 Answer

Fuel Problem

If you have 2 carbs that work on another unit but not this one then that narrows down the fuel problem to either an intake/ vacuum leak or bad fuel in the tank.
The compression sounds a tad high which could indicate valve timing ( exhaust opening late or not long enough)
On the ignition side you could have a bad CDI , weak pulser coil or sheared flywheel key.
I believe I would lean toward suspecting the ignition. I had a Honda that gave me fits acting like a lean issue. I was in that carb 25 times if I was in it once. Same thing, idled fine but died on acceleration. It was the CDI. Put a spark tester inline with your spark plug and see if the unit dies due to lack of spark.

Dec 29, 2009 | 2003 Yamaha WR 250 F

1 Answer

The problem im having is when i start it it has a really rough idle and i have no throttle respnons at all if i open the throtle it will die and backfire out hte thrtle body

When you start the vehicle, the computer is in the open loop system. This means the engine is operating on preset data stored in the computer. When the car reaches a predetermined temperature, the computer switches to a closed loop system that incorporates the vehicle sensors.

Your ECM may be failing

Nov 11, 2009 | 2000 GMC Jimmy

1 Answer

I have a 1984 Honda X200R and it's not getting a

Hi and welcome to FixYa,

On Asian versions of an 84 Honda XR200R, the CDI unit has six wires:
  • blue/yellow - pulse generator
  • black - to ignition coil
  • black/white - engine stop switch;
  • green - ground;
  • green/white - pulse generator
  • black/red - exciter/charging coil at stator.

The ignition coil has 2 wires:
  • green - ground;
  • black - to CDI

Good luck and thank you for asking FixYa.

Nov 11, 2009 | 1985 Honda XR 250 R

1 Answer

1991 grand am 2.5 backfires wont start.

MAP sensor is probably bad ,located on the air filter cover

Jan 25, 2009 | 1991 Pontiac Grand Am

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