Question about 2007 ATK 450 Xc

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Fuel injector 450 xc

Wen i try to start my bike the injector starts

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Fills with gas then stops. The Bike doesn't start and the injector just doesn't make anymore noise isn't it suppose to be going continuously? if so then wat can i do to fix this problem ?,The fuel pump primes for a few seconds and then shuts off until the bike starts. What you are describing sounds normal. If your filter is filling with gas you may have a dirty fuel filter, or the orings in the quick disconnect may be blocking the fuel on either side of the tank. One of my friends had a oring blocking the return line and it ended up taking out his pump. Make sure you have a good stream of fuel returning to the tank, if so there is no blockage. ,,,

Posted on Nov 10, 2008

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2011 KTM 250 SXF will not idle


Hi, Anonymous if your bike has been sitting idle for months or years and you did not do any pre-storage maintenance I feel your pain it will probably have a dead battery and not want to start or if it starts it will idle and run poorly, here are the following steps necessary to complete in order to get your bike back to an acceptable running condition.
1. If your battery was 2-3 years old when you last had the bike running you should replace it.
2. If you believe your battery might still be serviceable remove it from the bike and put it on a 1 or 2 amp trickle charger for 24 hours. If it is the old lead acid type with visible cells and acid levels fill each cell to the top line with distilled water and replace the caps, run the vent tube into a plastic or styrofoam cup, any cells that are cloudy/milky replace the battery.
3. After charging remove the leads and let the battery sit for a couple of hours then check the battery voltage with a volt meter, you should have 12.5 volts or better, any readings in the 11 volt range you need to do a proper load test on the battery and replace as necessary, any readings in the 10 volt range you have a dead cell and replace the battery.
4. Drain and flush fuel tank, google " how to clean a motorcycle gas tank" find a couple forums to view the different options available.
5. Remove your air cleaner and clean and re-oil per Mfg. specifications.
6. Remove the carburetor, disassemble and decontaminate with a carb dip or if you have EFI remove injectors and clean with carb spray and compressed air
7. Remove fuel valve and filter disassemble and clean as necessary, remove fuel lines and replace with new ones.
8. Replace spark plug with a new one and check for spark.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
250 sxf wont idle 250 350 450 505 SX XC 4 Strokes
2012 KTM Fuel Injection Filter Discussion Enduro360 com
http://www.ktmforums.com/forums/two-strokes/5351-help-ktm440-wont-idle.html
https://drive.google.com/file/d/0B2-8B_LViIenQ2xmdkZFUEJiaHc/view

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1 Answer

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1 Answer

My Yamaha YBR 125 2007 not starting, it been standing for 2 years


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Went for a ride the other day my ktm 450 died couldnt get it too run brought it home checked valve clearances all ok cleaned carburettor out and jets all ok checked spark at plug all ok bike still wont...


the flat battery shouldnt cause the problem and you said it has spark at the plug, so that sort of eliminates electrical problems.
if the carb is clean and it has good fuel, its a bit tricky to diagnose.
perhaps a sheared flywheel key,
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I have a 07 450 with the 2moto kit it is fue injected it keeps getting fuel in the oil up to 1/3 cup in 2-3 hours of ridding . it does not seem to ever be fludded and usualy starts within 4 kicks.any...


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1 Answer

Bike only starts with choke on and wont idle .by the way its a ktm 250 xc 2006.air filter is clean and has new plug . wondering about needle adjustments?


If your bike ran good previously - and nothing has been changed that would require rejetting or a needle adjustment, I would look for problems elsewhere. Such as:
Has the bike been stored for more than a few months at a time? If so, the carburetor jets could be plugged with fuel varnish. Only being able to start with the choke applied - and an inability to idle are both classic symptoms of this. Remove and disassemble the carburetor. Clean it and the jets out with carb cleaner and compressed air, then reassemble. Also make sure the fuel in the tank is fresh and that the fuel strainer (usually with the fuel petcock) is clean.
There are three ingredients required for combustion: fuel, compression, and a spark (at the right time). So long as you've got each of these - it has got to run.

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1 Answer

I HAVE A kfx450R that won't start by the motor but will actually start when it is bumped. Now the FI light is flashing when it is cranked but it won't start. The pump purges and when I removed the injector...


what a beautiful bike ...the valves need to be checked if you can bump it and it starts and runs Ok then one of the valves is not closing properly Good Luck Ride safe

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1 Answer

My 250 sxf doesn"t start wen is hot


hi mate its a thing with the fourstroke bikes they are very hard to start when hot they take a load to get going again just keep trying and it should think about it every 4 strokes there will be a spark so .......

Aug 27, 2009 | 2008 KTM 450 SX-F

1 Answer

Elecric start problem- kick start good


hi m8,, first try this, take the handle bar start button switch gear appart,,and clean the starter button terminals that connect wen u push button in,,spray some wd40 inside the switch gear wen u put it back together,,,,,often after off roading ,,connections that the eye cant see corrode wen the bike is washed down,, any probs still ,, shout and il anserw m8,,,,,cheers

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