Question about 1987 Yamaha YX 600 Radian

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Motorcycle does not idle and continuously stalls... shifting is not very smooth

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  • Yamaha Master
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Hi Ziad,
Check the carburator/s probabely they require cleaning and check too the fuel line and petcock, check the intake for any leaks.
Check the air filter too.
The engine of your bike seems to require a thorough tune up!

Good Luck.
Hope this helps.

Posted on May 30, 2009

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Posted on Jan 02, 2017

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Why doe;s my 97 Ford expedition stall only when turning into a parking place or my drive way?


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My car idles up the down; sounds like it wants to stall, but smooths out after a few minutes of warming up.


Its a faulty idle air control valve.You can take it off and clean it using a non-chlronated brake cleaner and a wire brush or and a scraperor you can replace it with a new one just make sure to reset the computer afterwards by disconnecting the ground cable on the battery for 30 seconds then start it.

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Hi, Eddie the following applies to carbureted also fuel injected models and the usual suspects are:
1. Severely discharged or damaged battery, 9 volts or lower.
2. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, ignition/electronic module.
7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Air/fuel mixture screw improperly adjusted.
10. Water or dirt in the fuel system, carburetor or filter.
11. Restricted, blocked or kinked fuel line.
12. Fuel tank empty.
13. Gas cap is not venting properly or fuel tank venting system blocked.
14. A failed fuel pump, pressure regulator and or fuel injectors.
15. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
16. Needle and seat stuck closed in the float bowl.
For more information about your issue, please visit the websites below. Good luck and have a nice day.
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1 Answer

When idleing once in a while it starts running rough and shaking truck, 1998 k1500 350. no engine light. when i gige it gas it smooths right out. engine seems like its a little louder than normal.


Here is the common cause of surges, cold stalls, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours.

To correct this problem Buy a can of throttle valve cleaner (it is made by CRC) from the local auto parts store, NEVER USE CARB CLEANING SPRAY, IT DESTROYS THE ANTI-STICK TEFLON COATING, spray it into the air intake through the throttle body of the engine until you have used about half the can, you will need to hold the idle up while you do this, it will try to stall, after this shut the engine down and disconnect the Negative (-) battery cable for 5 minutes. The intake is now clean, if you continue to have the idle speed control problems you may need to seek the help of a professional.

Feb 13, 2012 | 1998 Chevrolet K1500

1 Answer

Dies when gas pedal is pressed


This engine has automatic idle speed control, the computer controls a "air bypass" valve on the side of the throttle body where the air intake hose from the air cleaner is connected, the valve and the throttle butterfly get "sludged" up and this causes all kinds of idle problems and off idle stall, see full list below and fix for the problems

Here is the common cause of surges, cold stalls, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours.

To correct this problem Buy a can of throttle valve cleaner (it is made by CRC) from the local auto parts store, NEVER USE CARB CLEANING SPRAY, IT DESTROYS THE ANTI-STICK TEFLON COATING, spray it into the air intake through the throttle body of the engine until you have used about half the can, you will need to hold the idle up while you do this, it will try to stall, after this shut the engine down and disconnect the Negative (-) battery cable for 5 minutes. The intake is now clean, if you continue to have the idle speed control problems you may need to seek the help of a professional.

Dec 04, 2011 | 1991 Ford F150

1 Answer

My bike stalls when i shift to first with the clutch pulled


Hey Dennis, sounds like it might be time to adjust the clutch...( at the engine).. get a service manual for your bike,,it will be a wealth of info for you..

Motorcycle Service and Repair Manuals

Jul 26, 2017 | Motorcycles

1 Answer

Hi, I have a derbi mulhacen 659 model 2011. When I drive the motor, after a while the motor turns off.. When waiting for trafficlights...it's shuts down .... expecially when the motor is warm, engine...


Hi, Quest25 the following applies to carbureted also fuel injected models and the usual suspects are:

1. Severely discharged or a damaged battery, 9 volts or lower.

2. Failed alternator/generator and or voltage regulator.

3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.

4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.

5. Failed system and or ignition relay, check for continuity.

6. Failed ignition coil, ignition/electronic module.

7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.

8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.

9. Air/fuel mixture screw improperly adjusted.

10. Water or dirt in the fuel system, carburetor or filter.

11. Restricted, blocked or kinked fuel line.

12. Fuel tank empty.

13. Gas cap is not venting properly or fuel tank venting system blocked.

14. A failed fuel pump, pressure regulator and or fuel injectors.

15. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.

16. Needle and seat stuck closed in the float bowl.

For more information about your issue and valuable "FREE" downloads that you need please visit the websites below. Good luck and have a nice day.

http://www.her-motorcycle.com/stalling-at-a-traffic-light-or-stop.html

Stalling Shifting and other Noobness

https://answers.yahoo.com/question/index?qid=20110902151558AAV6IRD

Motor stalls when idles hot in traffic

Aug 20, 2011 | 2011 Derbi Mulhacen 659

1 Answer

Engine stalls when shifting into any drive gear.


It sounds like your idle air control valve could be going out on you.  The extra stress from being in gear can cause the car to stall out if the IAC valve isn't opperating properly.  The IAC is attached to the throttle body and is normally held on by two screws.  IAC valves are relatively cheap from AutoZone and easy to replace.  That would be my best guess based on your description.  Good luck and let me know if you have any other questions.  Thanks for an honest rating and for using FixYa!

May 24, 2009 | 1993 Mazda Protege

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