Question about 2003 Yamaha YZ 125

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How to put a yamaha dtr 125 engine back together

Step by step instructions would be nice as i dont have much knowledge thankyou

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Hi hope this helps

1. place enging clutch side down on wooden blocks either side
2.place in gearbox and drum and selectors making sure all gears select by turning drum. (Tricky bit)
3. locate crank and tap into place, not damaging threds. also locate balencer.
3. place on other crankcase gentle tap together so there is no gap and tighten together with bolts.
4. next fit clutch, flywheel and piston and head.

Posted on Mar 03, 2009

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How do u open power valve on a dtr 125 h.plate

Posted on Jan 26, 2009

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You have to be very careful with a 2 stroke because an air leak can kill it. This is something that I wouldn't recommend tackling unless you knew what you wrer doing. At a minimum, You might want to take it to a tech school, or your school districts auto mechanics class and see it they will do it for you. They love this type of thing, and they have the tools.

Pick your battles wisely.

Posted on Dec 10, 2008

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1990 Yamaha DTR 125


Hi, Jonathan after careful deliberation 4 out 5 Yamaha Gods give this one a thumbs up, but just to be on the safe side you should give your local dealer's parts/service department a call to confirm. Good luck and have a nice day.
Yamaha dt 125 1988 Service manual Download service repair owne
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Yamaha DT 125 1991

Feb 07, 2016 | Yamaha Motorcycles

1 Answer

Whats the paint code for blue 04 dtr 125


What is the paint code for the blue yamaha dt 125 r - Fixya

www.fixya.com/motorcycles/t8908342-paint_code_blue_yamaha_dt_125
Apr 9, 2011 - what is the paint code for the blue yamaha dt 125 r - Yamaha 2004 DT 125 R question. ... Cocktail Bike Colour:Deep Purplish Blue Solid E /Racing Blue ...Need wiring diagram for electric start yamaha dtr 125 thx tommy.

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... fits my 2003 yamaha dtr 125 http://cgi.ebay.co.uk/Yamaha-DT125-R-88-04-NGK- ...what is the paint code for the blue yamaha dt 125 r Frame colour :Deep ...

DT 125 R yamaha paint code Questions & Answers - Fixya


Nov 29, 2015 | Yamaha Motorcycles

1 Answer

How to fix a dtr engine w/ broken piston ring?


Hi, Anonymous sorry you can't find the first and best tool you ever bought for your Yamaha despair, not for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
http://www.dirtntrial.com/tuning.htm
Yamaha DT 125 2003 http://www.dt125.cz/download/Owners_Manual-DT125X_RE.pdf
OEM parts for Yamaha
http://www.motogelnar.cz/manual/YAMAHA/DT125X_RE-05-Service_Manual.pdf

Apr 27, 2014 | 2000 Yamaha DT 125 R

1 Answer

Were is the cdi box on a yamaha dtr 125 2002


Hi, Anonymous sorry you can't find the first and best tool you ever bought for your Yamaha despair, not for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
http://www.dt125.cz/download/Owners_Manual-DT125X_RE.pdf
OEM parts for Yamaha
http://www.motogelnar.cz/manual/YAMAHA/DT125X_RE-05-Service_Manual.pdf
Yamaha DT 125 LCII CDi teszt
yamaha DT125R CDI box location Google Search

Apr 03, 2013 | 2002 Yamaha DT 125 R

1 Answer

My dtr gets hot easly


Hi, Anonymous and the usual suspects are:
1. Low coolant level.
2. Restricted radiator air flow.
3. Faulty thermostat.
4. Coolant pump or fans inoperative.
5. Vent hose crimped.
6. Air in the coolant.
For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
yamaha dt 125 engine problem plz help
Overheating Dt125R
http://www.motogelnar.cz/manual/YAMAHA/DT125X_RE-05-Service_Manual.pdf
OEM parts for Yamaha
http://www.dt125.cz/download/Owners_Manual-DT125X_RE.pdf

Oct 06, 2012 | 2003 Yamaha DT 125 R

2 Answers

No spark on yamaha dtr 125cc


Sounds like you are flooding the engine with gas. Put in a new spark plug then twist the throttle one time to prime the cylinder. Now get your hands off the throttle and give it a few kicks. Each time you twist the throttle the power valve gives a shot of gas. Too much can flood the engine quickly.

May 17, 2010 | 2000 Yamaha DT 125 R

1 Answer

Can i put 2002 yamaha dtr engine 125cc in a 1995 dtr 125cc bike?


well at first in wont fit because the cooling (LC) system will not fit the 02, but with a little welding and some alum works, you will be able to fit it.

the only difference will be the placing of the mount, weld holes and drill holes on the frame, but before you do so, remove all electric components from the frame.

hope this helps.

May 24, 2009 | 2002 Yamaha DT 125 R

2 Answers

Hi there i have a yamaha dtr 125 "1990 on a h,plate my left hand engine casein is cracked at gear select,coul anyone tell me what year of casings will fit,ive seen a 1999 one will it fit,also piston and...


The bike is 19 years old. Caseings will be VERY hard to find. Suggestion; take the case to a welding shop and ask them to weld the crack. Teey will have a MIG or TIG welder which will do the job and the cost should only be about 20 bucks.

Mar 09, 2009 | 2003 Yamaha DT 125 R

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