Question about 2003 Yamaha DT 125 R

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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 top head r pited what r the causes??thx tommy

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Hi i have a 1990 dtr 125 i dont no witch way round the fuel pipes go on the carb witch come form the top end eny clues

Posted on Dec 10, 2009

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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.

Posted on Mar 11, 2009

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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

Hello.Owner of 1990 XT600 2KF,30.000 km in very good condition. after een steep ride in first gear,I cannot shift to first gear.It seems stuck.Engine off: no problem changing gears. What can this be: Oil...


If the clutch is operating fine as well as the shift mechanism, it's either a bearing or a internally cracked case that's allowing the bearing to move. First gear is actuated on the rear transmission shaft that Is common to the drive sprocket on the left side of the bike, and an idler gear that engages the kick start lever to the clutch basket. This is located under the right engine case cover. Remove the chain and sprocket and check the shaft to see if it will move up and down in the bearing. If that's solid, remove the right side cover and check the case and bearing under the idler gear. I have had Yamaha cases crack at that bearing area and cause that same problem. Good luck!

Jun 13, 2011 | 1995 Yamaha XT 600 E

1 Answer

2007 yamaha R1 Blown motor. All stock All and


There engines are not "throw-aways". Yours may be an exception. The only thing that would punch a hole in the case as you described, is a rock kicked up by the front tire, a broken connecting rod or a gear breaking apart and a large part of the gear being slammed into the casing by the crankshaft. The standard service procedures would never prevent a broken rod or gear. The rod would have to have been defective from the factory. The gear may have been defective but with the extreme pressure an engine puts on gears no manufacturer would, or should, back up a warranty unless you can prove defects in the gear. Look inside the hole, turn the crankshaft and see what you can see. I suggest that you get an engine from a motorcycle salvage yard. Save the old engine for spare parts. Google motorcycle salvage honda and see what you can find.

Nov 19, 2009 | 1998 Yamaha YZF-R1

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 ive got yamaha dtr125,1990,could anyone tell me if i could fit a dtr engine with electric start?and what things i need for change ive got carb and all electrics and cabels,thx tommy


hi mate you dont need to change anything as im sure the carbs are all the same through the years also the only thing you need is a start switch

Mar 11, 2009 | 2003 Yamaha DT 125 R

1 Answer

Hi i have h plate dtr 125,engine oil is gray cld any1 help and tell me what it could b and is overheating,thx tommy


the problem arises in this situation because the water system is mixing with the oil system? if i am right in thinking that this is an liquid cooled version with the infamous powervalve system then you might find it usuially has something to do with that. if you keep running th engine then you will find out that it will do lots of damage to your piston which relies on oil to move and cool.

Feb 23, 2009 | 2003 Yamaha DT 125 R

3 Answers

How to put a yamaha dtr 125 engine back together


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

Dec 10, 2008 | 2003 Yamaha YZ 125

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