Question about 2005 Yamaha DT 125 RE

1 Answer

My Malaguti rally runner (DT125) wont run right when hot.

Hi, have been tinkering with the DT125 copy and cant get her running right. She runs lovely when cold but as soon as she is hot she bogs down and behaves a bit like she is not getting fuel or the coil is going, Juddery, looses power then it suddenly comes back again then fades away. Have tested the coil and it shows the proper resistence values and have taken the carb to pieces and serviced it, tuned the floats etc. Also cleaned the petrol tank and looked in the air filter. HELP!

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,167 Answers

Change the plug run a br8eg plug and get back to me

Posted on Oct 06, 2009

  • ollie reece-jones
    ollie reece-jones Oct 06, 2009

    did this work buddy i said get back to me i can still solve it it just  need more info to carry on 



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Wont start

there are 3 main needed parts to make
any engine run
(1) fuel air mixture
(2) compression
(3) ignition
if you have all 3 then as long as the timing is right
the engine will run

Oct 19, 2013 | 2006 Malaguti F15 Firefox Mechatronic

1 Answer

Fuel pump not working unless i hot wire it still wont fire 1995 4 runner

Most likely your fuel pump needs to be replaced. If, when you turn the key to the run position, you can't hear it humming for 3 to 5 seconds, it is likely burnt out. Best way is to take the fuel cap off, and have someone stand at the cap and listen. You will need to drop the fuel tank to replace the pump. ( PS: Never use starting fluid on a gas engine. For one thing, it can cause an explosion, and for another thing if it backfires you can blow your intake gaskets etc out)

Mar 18, 2013 | 1993 Toyota 4Runner

1 Answer

P2004 INTAKE manifold runner stuck open control bank 1.

Hi there,
I have a Mazda 6 which recently had black smoke / soot coming from the exhaust. On inspection, the inlet manifold was stuck open. I have just had the garage replace the control solenoid for the inlet manifold and so far the car is running ok.

Apr 05, 2012 | Ford Focus Cars & Trucks

1 Answer

How do i adjust mixture on malaguti grizzly 12

the idle screw on the right side of the carb

Feb 17, 2012 | 2010 Malaguti Grizzly 12 Enduro

1 Answer

Cant run pro rally 2001 on windows 7 please help

het spelletje blokeert als je wilt beginnen met het spelen

Sep 20, 2011 | Ubi Soft Entertainment Pro Rally 2001...

1 Answer

Hi i wanted to know if there is a 64bit version of your 'Urban Runner'- im a big fan but my computer doesnt want to run the game :(

Try running it in compatibility mode for windows xp (right click on the exe and click properties, then click the compatibility tab, click run in compatability mode, then try xp or vista.) Hopefully that works out for you.

Feb 28, 2011 | Sierra Online, Inc. Urban Runner for...

1 Answer

1975 dodge 440 runs great but after tinkering with it it wont sta

I guess it runs if you jump it at the starter??? if so, power comes from the ign switch to the trans (neutral start switch, then to the Starter relay, then to the starter. so ck all that wiring an dsee if maybe you knocked something loose, or try to start it in neutral.

Sep 22, 2009 | 1983 Dodge Pickup

2 Answers

92 gmc rally stall while running

Fuel filter, fuel pressure? maybe the catalytic converter is clogged?

May 18, 2008 | 1992 GMC Rally

2 Answers

I cant get my pics off my camera

what operating system are you running? if you are running windows xp you just plug it in then open the drive that your camera is right click on the photos you want then click copy and paste

Apr 28, 2008 | Polaroid I533P Digital Camera

Not finding what you are looking for?
2005 Yamaha DT 125 RE Logo

Related Topics:

277 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts


Level 2 Expert

281 Answers


Level 3 Expert

1211 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1147 Answers

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

Answer questions

Manuals & User Guides