Question about Yamaha YZF-R6 Motorcycles

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Idle low stalls stopped

My 08 yzf r6 has 17,900 miles and when i'm riding and coming to a stop it will most of the time idle at 900 rpm or lower then other times bike will cut out. This happens when bike is warmed up and will sometimes idle where it should be. I know the bike has its own Diagnostic and the bike checks out ok. Need some help solving this issue?

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  • 13 Answers

This is usually a fuel problem. The bike is running either too lean or too rich. Check your spark plugs -- if there's black carbon on the tips, the fuel/air mixture is too rich and needs to be leaned out. If they're white, it's running too lean. If they're tan, there's some other issue. Clean or replace the air filters and check your inline fuel filter (if you have one) to make sure there are not clogs or obstructions.

Posted on Mar 21, 2014

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Posted on Jan 02, 2017

  • 14 Answers

SOURCE: Drives great but at/when drops to idle it stalls

When you are on the bike and riding do you still have the choke out? And stop spraying starter fluid into the carbs..bad bad bad.... bikes start with out that stuff and if you need it then something is wrong.. your gonna mess something up doing that....let me know about the choke and we will go from there...cj_monaco@hotmail.com

Posted on Jun 21, 2009

  • 200 Answers

SOURCE: idle engine cuts out

You need to get to the idle screw on your carb and srew it in until your idle raises up a bit, also put some Techroline (chevron) in your gas tank...1/2 bottle in Full tank.....Good luck to you friend....Tim

Posted on May 13, 2009

  • 3567 Answers

SOURCE: My 125cc single cylinder (pulse adrenaline) cuts out at junctions

Since the bike is new, chances are strong that fuel IS the problem.
Also chances are that the carb is perfectly fine. Since the bike is new I'll bet yoy have washed it several times already. The dealer may have washed it also. Fuel is the problem because bikes do not run well on water.

Drain the carb. Remove the water trap bowl on the bottom of the petcock, (gas valve). Look at the gas in the bowl. Any water in the bottom of the bowl? Drain a cup of gas from the petcock. any water in the cup? I am very hopefull this will fix the problem. With a new bike and a clean carb and fuel system not much else should be wrong.

Posted on Mar 21, 2009

  • 375 Answers

SOURCE: My 9 month old Yamaha YZF-R125 has been cutting

Sounds like you have either got water in the system or poor connections.
You can use something like dielectric grease on each connector. It is a bit of a pain having to open and close each connector on your bike, but once you've done it, you shouldn't need to do it again for a long, long time.

Posted on Jun 29, 2009

  • 1 Answer

SOURCE: 83 suziki GS450 idle issues

the problem with the rubber was close but on the gs450 there is a metal insert that even if the rubber was rotted away the metal seals aginst the head so it cant leak. the problem is on the gs 450 suzuki used a cheap throttle cable that kinks behind the gas tank and kinks at the bend to the crabs under the set and the throttle system is a pull only not a dual cable pull push to always close the throttle. if you start the bike a wiggle the bend in the cable that comes out from the twist grip you will see it changes the idle. with either your finger or a screw driver and push the plate down on the carbs that the cable connects too. if the idle drops this conforms your problem. order a new cable from dennis kirk they have the revised one that has metal adjustment screw and metal clip in. better jacket casing as well.

Posted on Sep 29, 2009

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I have a 2008 mercury Milan with nearly 60k miles on it. When I come to a stop the rpm drops by 1000 then recovers quickly. What should I do to fix the problem? Any suggestions will be greatly appreciated.


Check out related help links to troubleshoot these problem:----Click the link below:---Idles Fine but RPM jumps in drive mode? http://technoanswers.blogspot.in/2012/07/idles-fine-but-rpm-jumps-in-drive-mode.html
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--------How to adjust rpm on 2009 dodge charger SRT8?


http://schematicsdiagram.blogspot.com/2011/12/how-to-adjust-rpm-on-2009-dodge-charger.html
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1 Answer

My r1 stalls after a time riding and stuggles to idle


Hi, Glen and the usual suspects are:
1. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
2. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
3. Spark plugs in bad condition or partially fouled.
4. Spark plug cables in bad condition and leaking check for spark leakage in the dark.
5. Spark plug gap too close or too wide.
6. Faulty ignition coil, module, and or sensor.
7. Loose, dirty, or corroded ignition module connector at crankcase.
8. Faulty CKP sensor.
9. Intake air leak.
10. Water, dirt, or rust in the fuel system, carburetor and/or filter.
11. Fuel tank vent system plugged or carburetor vent line closed off.
12. Vacuum line from intake manifold to fuel valve is broken, cracked, pinched, or missing.
13. Carburetor controls misadjusted.
14. Damaged carburetor.
15. Incorrect valve timing.
16. Weak or broken valve springs.
17. Damaged intake or exhaust valve.
18. Check for engine trouble codes
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
http://www.r1-forum.com/forums/105-07-08-r1-mechanical-help/261428-08-r1-unsteady-idle-stalling.html
http://www.r6-forum.com/forums/57-garage-mechanical-help/91441-bike-stalling-when-i-stop-wont-stay-idle.html
2004 2005 Yamaha YZF R1 Service Manual R1 Moto Data Project
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

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1 Answer

Every time my car comes to a red light it powers off.why?


EGR (exhaust gas recirculation),or TPS (throttle position sensor) When the vehicle makes a stop and go into idle. The RPM is basically too low to maintain the RPM, If the vehicle runs 800 RPM in park or neutral and doesnt stall the setting is correct. If it stall in neutral or park and has a hard time accelerating you will need a TPS, The EGR can stall a engine if it stays open underload approching a stop where it doesnt close properly

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1 Answer

I have an 03 Harley Electra Glide. The idle drops to almost a stall when coming to a stop after riding a few miles.. I can hold the throttle for a few seconds and the idle will pick back up..


If it's a carburetor equipped model, this is normal. The engine will not come to full operating temperature in only a few miles and it will idle low. Once the engine reaches full temp, if it still idles too low, there is a screw on the carb at the top right that you set the idle speed with. If your bike is fuel injected, you'll probably have to take it to a shop to have the idle set.

Good Luck
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May 28, 2011 | Harley Davidson FLHTCUI Electra Glide...

1 Answer

2003 Yamaha R6 Bike stalling


Hi, Elec2512 and the usual suspects are:
1. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
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. Accelerator pump damaged or not working.
11. Water or dirt in the fuel system, carburetor or filter.
12. Restricted, blocked or kinked fuel line.
13. Fuel tank empty.
14. The gas cap is not venting properly or fuel tank venting system blocked.
15. A failed fuel pump, pressure regulator and or fuel injectors.
16. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
17. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you need please click on the links below. Good luck and have a nice day.
http://www.r6-forum.com/forums/57-garage-mechanical-help/91441-bike-stalling-when-i-stop-wont-stay-idle.html
http://www.r6messagenet.com/forums/r6-maintenance-technical/14953-03-still-stalling-idle-input-please.html
2003 2004 Yamaha YZF R6 Service Manual R6 Moto Data Project
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http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

May 19, 2010 | 2003 Yamaha YZF-R6

2 Answers

I have a 1999 Audi A4 2.8L - Last month it was stalling at low RPM after initial start idle kicked down. I put in fuel injector cleaner and it fixed the problem. Yesterday it returned and is shaking before...


Crank shaft sensor or air mass meter, is this a v6? I had the 2,6 a4 same fault same miles funny enough. changed the air mass meter is was ok after that. thing is they have so many sensors, you need to get it on a diagnostic machine to be sure.

Jan 13, 2010 | 1999 Audi A4

2 Answers

Stalls when at lower revolutions or when stopped


Low / uneven idle problem can cause by a lot of components.

Dirty air filter

Dirty injectors + o-rings

Vacuum leak at intake manifold and vacuum hose.

Bad Idle Air Control Motor (IAC)

Low compression (170 psi + is OK)

Start cleaning and repair these trouble spots and see is there any improvement.

====

For more advance DIY'er then you may try this.

Use a can of Berryman carburetor clean to locate the vacuum leak.


SEE SAMPLE PICTURE HERE


This is a 20-30 minutes job.

Vacuum leaks can occur in following locations.


Intake manifold AND/OR vacuum lines.


Intake manifold is not accessible unless the engine head if off.

You can still check the potential leak by spraying some Berryman near the intake manifold.

Listen for rpm increase after you introduce the Berryman (FUEL) at idle.


Do the same starting from the brake booster unit (the round unit) on the drive side fire all.

Carefully listen for increase of RPM right after to spray the Berryman to the potential vacuum spot.

Get a friend to HEAR the ROM increase or monitor for RPM on the tech.

DO NOT AIM the Berryman into any heat source.


PLEASE RATE my answer if it is useful to you.

Sep 28, 2009 | 2004 Dodge Grand Caravan

1 Answer

Car idles low, stalls after start


Common issue at the shop (i'm a ford technician), here is what I do to correct it.
Here is the most common cause of surges and stalls at stops and low erratic idle speed and rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Mar 11, 2009 | 1999 Mercury Cougar

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