Question about 2002 Yamaha DT 125 R

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Idling the bike,wont hold an idle

When i run my bike it wont hold itself on idle it just cuts out, iv'e checked the carb an cleaned it.

i have a new coil to fit if that is the problem, but if not what could be the problem?

the starting on the bike isn't easy either its electric start not kickstart.

my bikes a dt125r sm 2002.

cheers

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  • Anonymous Mar 14, 2014

    my bike starts and ides but wont rev up fitted a new plug but wont rev up

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It sounds as if you have dirt in your fuel line or some bad gas.
I would recommend draining your tank and cleaning it, then replace your fuel filter.

Posted on Dec 03, 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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check for vacuum leaks ,around intakes

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Hi my suzuki gz 125 wont idle correctly and when i rev the engine it just dies down and cuts out i cant even achieve a stable idle speed


I had this problem today with my bike and after much ado I discovered there was oil in the air filter box... check your oil level it could be too full. Mines was and the excess oil was blown into the air filter box and as a result contaminated the air filter. Spent today cleaning the filter box, carb and draining and changing oil, could not get a new air filter today so ran it without onebike runs like new!! New air filter will be here Monday!

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COMMON FAULT, FLOAT IN CARB CAN STICK CAUSING FUEL STARVATION REMOVE FUEL BOWL CHECK THE FLOATS FOR FREE MOVMENT {WD40} DOES THE BIKE START THEN CUT OUT OR ONLY RUN WHEN THROTTLE TURNED AND NOT IDLE. IDLE JET IN CARB COULD BE BLOCK WITH DIRT , IF DOES NOT START AT ALL CHECK YOU HAVE SPARK AT PLUG ,REMOVE PLUG FROM HEAD PUT INTO HT LEAD HOLD AGAINST ENGINE HEAD TURN ENGINE OVER YOU WILL SEE SPARK {IF YOUR UNLUCKY YOU,LL FEEL IT } HOPE YOU SORT IT OUT GOOD LUCK {FROM AN AUTO ELECTRICIAN]

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I can get my j1 to idle but when i open the throttle it stalls.the pistons in the carbs chatter (all 4) as soon as i open the throttle before it cuts out


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2 Answers

Will not idle


Your carbs are dirty and need to be cleaned. A tank of bad gas or old gas can gel up the jets. You buy gas, drive home, and when you get there the bike stops idling. Light gelling can be fixed by draining the carbs (screw on bottom of bowl), pulling the fuel line off the tank, and squirting some motorcycle carburetor cleaner down the fuel line. Plug the fuel line back in turn on the gas and start up the bike. If that doesn't work, using the same procedure buy some Chevron Techron fuels system cleaner, pour directly into the carbs and let sit over night (also drain tank and heavily treat one gallon of gas and put in tank) Fire up bike and let run ,idle, slow drive for 5 to ten minutes. This will usually get cycle idling without disassembling carbs. If it still wont idle you will have to take off the carbs, disassemble and clean blowing through the jets and jet passageways.

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2 Answers

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You need to sync the carbs after removing them it wont idle if they are out of sync.
When were the valve clearances last checked? It wont idle if they're out.
If you alter the valve clearances you shd sync the carbs after
Ride-Safe
Bike-Doc

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