2005 Yamaha XT 125 R - Answered Questions & Fixed issues


Hi, Broozer123 and the usual suspects are:
1. Inlet system air leak.
2. Enrichener valve not seated or leaking.
3. Damaged or restricted fuel tank vent system.
4. Restricted fuel supply tract.
5. Dirty or damaged air cleaner element.
6. Plugged bowl vent or overflow.
7. Worn or damaged needle or needle jet.
8. Vacuum piston assembly malfunction.
9. Loose or plugged main jets or passages.
10. Improper float level.
11. Accelerator pumps inoperative.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
derestricting XT125
Carburator Theory and Tuning
Yamaha XT 125R 2005 Service Information
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xt-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

2005 Yamaha XT... | Answered on Jun 05, 2017 | 60 views


Hi, Rikusjf for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Yamaha xt 125 service manual
OEM parts for Yamaha
YAMAHA XTZ 125K Owner Manual
Yamaha XTZ 125E
Yamaha XTZ 125 Wikipdia enciclopdia livre

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

2005 Yamaha XT... | Answered on Apr 24, 2017 | 94 views


Hi, Anonymous the carburetor throttle shaft wheel has two cables the cable closest to the right side of the bike is the throttle cable and the one closest to the left side is the idle cable. Right about the middle between the two is the idle adjustment bolt it faces out towards the air filter end of the carb. The engine should be at operating temperature with the enrichener off to set the idle between 950-1050 rpm. Turn the idle adjustment bolt clockwise to increases idle speed and counterclockwise to decrease idle speed. If you have access to your air fuel mixture bolt you may adjust it as well if not there is a video below on how to gain access, make sure you start with clean or new spark plugs. Gently turn the air fuel mixture bolt clockwise until it starts to bottom out "STOP" do not over tighten as it will damage the taper on the end, now back it out 2 full turns to establish a starting point start the engine and check the idle rpm's and adjust the idle adjustment bolt accordingly for 950-1050 rpm if necessary, adjust the air fuel mixture bolt 1/4 turn at a time and let the engine settle for about 10 seconds, clockwise for a leaner mixture and counterclockwise for a richer mixture you are seeking the highest rpm your air fuel mixture bolt can acquire without going past 3 full turns from bottom then readjusting the idle adjustment bolt back down to 950-1050 rpm If you can not detect any rpm change and can not stall the engine by turning the air-fuel mixture bolt all the way in then your pilot/low-speed jet is too big. Final adjustment should be made with a clean air filter mounted to the carburetor. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have wonderful a day.
XT125x misfires lot and will not idle
Yamaha XT125 Carb Tips Mikuni 3D6
YAMAHA XT125R XT125X FULL SERVICE REPAIR MANUAL 2005 2011 Download Manuals... $9
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xt-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


2005 Yamaha XT... | Answered on Mar 20, 2017 | 762 views


Hi, Anonymous for more information about your question and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Guys need help Electrical problem
Yamaha XT125
http://gigi600.altervista.org/immagini/xt125r/XT%20125%202005_service.pdf
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xt-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

2005 Yamaha XT... | Answered on Feb 22, 2017 | 130 views


Hi, James for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. 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.
Yamaha XT 125R 2005 Service Information
OEM parts for Yamaha
Yamaha xt 125 service manual
throttle cable replacement xt125x
How to replace the choke cable on yamaha xt125r Google Search

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


2005 Yamaha XT... | Answered on Feb 04, 2017 | 93 views


Hi, James for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. 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.
How to replace the choke cable on yamaha xt125r Google Search
throttle cable replacement xt125x
Yamaha xt 125 service manual
OEM parts for Yamaha
Yamaha XT 125R 2005 Service Information

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


2005 Yamaha XT... | Answered on Feb 04, 2017 | 164 views


Hi, Bill for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. 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.
Yamaha Vintage Dirt Bike Guide Off Road com
http://www.thisoldtractor.com/mg_manuals/book_motorcycle_identification.pdf
Yamaha DT100A 1974 Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-dt

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

2005 Yamaha XT... | Answered on Dec 27, 2016 | 18 views


try a new spark plug or check the Electricals on the bike from the battery to the engine i dont know how to but i would check them

2005 Yamaha XT... | Answered on Feb 19, 2015 | 449 views


check the kill switch on the handle bars

If you need further help, I’m available over the phone at https://www.6ya.com/expert/michael_00678fd4800d19c5

2005 Yamaha XT... | Answered on Feb 26, 2011 | 335 views


Check the output voltage of your alternator, it seems to be high resulting in your problem. It should not exceed about 14.5 volts max for a 12 volt system. Have it checked and set by an auto electrician.

2005 Yamaha XT... | Answered on Feb 18, 2011 | 72 views


back swing arm has a two size holes where it connects to back suspension spring you can adjusts to higher hole raising the bike

2005 Yamaha XT... | Answered on Jul 21, 2010 | 394 views


the speedo is only set in mph but yamaha use the same speedo on the xtx and the speedo is run off the brake discs they are differant sizes so you must be set to the xtx.
what you need to do disconect the battery (under the seat)leave for a bit and you should have ENDURO and NTARD flashing on the speedo (ENDURO IS FOR THE XTR AND THE NTARD IS FOR THE XTX) JUST TURN THE KEY WHEN IT SAYS ENDURO IT SHOULD RESET.

2005 Yamaha XT... | Answered on Jul 21, 2010 | 510 views


Fuel and ignition systems are separate.
Examine the electrical system for your problem (wiring, switches, spark plug).

2005 Yamaha XT... | Answered on Jun 21, 2010 | 154 views


hello, check and see if plug is firing a blue color, if not you may need a stator-pickup coil, i have a 2000 warrior, it is firing, orange and white color, stator neede to be replaced, pickup coil was going out, also check ign coil, these have a problem with getting weak after a while. most likely it is your stator pickup coil, no blue fire from plug, no running the motor. my stator pickup coil was going out. no blue fire from plug, i was told by a yamaha mechanic, no blue fire from plug it will not run, has to be blue, not orange or white looking fire.make sure carb is clean and all jets inside are clean, and air passage ways

2005 Yamaha XT... | Answered on Feb 25, 2010 | 695 views


Hi and welcome to FixYa,

Initially, a couple of checks:
  • is there sufficient compression - compression test;
  • is there suction - cover the carb in port with the palm of your hand, when starting, it should be wet with fuel;
  • determine if fuel is reaching the sparkplug / combustion chamber;
  • condition of the intake reeds;
  • excess 2T oil in the crankcase - clean, air dry.
Good luck and thank you for asking FixYa.

2005 Yamaha XT... | Answered on Dec 22, 2009 | 230 views


Yes, the float or the float needle is sticking in an open position. The only other possibility is a float that has a pinhole in it and has filled with petrol and will no longer float as it should.

2005 Yamaha XT... | Answered on Nov 22, 2009 | 707 views


Just an idea....It sounds like an issue at the carb. Your float could be stuck or sometimes dirt and "****" settles into the bottom of the bowl and gets carried away when you drain the bowl. If the bike has been 'tipped' over hard a couple of times this 'dirt' will become dislodged and end up...anywhere.
So first just clean the carb and make sure you set the float bowl. Let us know if this helps.

JP

2005 Yamaha XT... | Answered on Oct 19, 2009 | 134 views


there nornally nis a bit of rattle,can you hear it with out the screwdriver, if not i wouldnt worry to much, i would if i was you drop the oil and put fresh oil in that will make some differrnce cos if the oil has lost its density it becomes thin am=nd wont protect the engine properly

2005 Yamaha XT... | Answered on Oct 17, 2009 | 243 views


dont use starter fluid it will ruin yur engine try squirting petrol on the inlet and see if it fires for a second get back to me then

2005 Yamaha XT... | Answered on Oct 09, 2009 | 224 views


the standard plug is the ngk CR7HSA

2005 Yamaha XT... | Answered on Sep 29, 2009 | 56 views

Not finding what you are looking for?
2005 Yamaha XT 125 R Logo

28 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

Top Yamaha Experts

vince

Level 3 Expert

1234 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1176 Answers

Israel Pineiro Jr

Level 2 Expert

165 Answers

Are you a Yamaha Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...