2003 Yamaha Dt125R Project

[Walney-Reptiles]

Hey yall

Well iv owned this Dtr for 8-9years when i got it. It needed alot of work i got it back on the road and used it for green laning up the lakedistrict also for getting out on, after loosing my job i had to take it off the road..

So im going to start getting my dtr back on the road, its been sat in the back garden for 3+years uncovered.
i managed to get it to start last month and that got me thinking about getting it back on the road as you can imagine there is alot todo il post some photos below of its current state...

Im going to rebuild the engine once again with a new top end, new crank bearings and a new Carb new exhaust and all the cosmetics and brakes etc... but i want to convert it into a Supermoto style il upload photos along the way

(Dose anyone know any 2-Stroke tuners for when i have rebuilt the engine so i can get it running sweet as a nut?)

[Calum]

Aww this will be a sweet project to get stuck into.

Make sure you soak every nut and bolt in penetration fluid before commencing!

I look forward to seeing what you do with this.

[Walney-Reptiles]

@Calum said in 2003 Yamaha Dt125R Project:

Aww this will be a sweet project to get stuck into.

Make sure you soak every nut and bolt in penetration fluid before commencing!

I look forward to seeing what you do with this.

Cheers mate i will do, most of them are stainless steel so there not to bad, im more worried about the swingarm bolt as it has a thing about getting sizred inside the steel spacer inside the engine casing, last time i had to wack it with a sledge hammer to get it out but it broke the threads, atho now i own a Die so should be able to re-thread it if needs be

[mhbikesnbits]

Like a project when there all rusted up adds a nice challenge to it

[Walney-Reptiles]

@mhbikesnbits Aye i know what you mean it never used tobe like that, it was my pride and joy, il get her sorted, need help finding some USD forks that will fit both dirt wheel and supermoto wheel tho

[Calum]

@Walney-Reptiles I run WR forks on my DTR. Used to have knobblies on them, now they have SM wheels.

[Walney-Reptiles]

@Calum Cheers buddy, still saving up for a new topend before i begin the strip down, im going to rebuild the engine first then sort the rest of the bike out

[Walney-Reptiles]

Well i decided to start the strip down today, gives me somthink todo while i save up.

also i got some bolts to help me with the rebuild M3, M4, M5, M6, M8 i also have some M10 and M12

Heres some photos from today
i started to strip her down and these photos are taken after a go-over with the pressure washer, i will get some more photos tomorrow when i begin round 2 of the strip down.

[Walney-Reptiles]

okay guys quick question, when i get round to it id like to buy a Brand new Rad that will fit the DTRanyone know any sites i could buy one from?

[Walney-Reptiles]

An update for the DTR project...

Today i am happy to say i have ordered the new top end last night, this is the one i have ordered.(Has anyone used this kit before?)

https://www.pedparts.co.uk/product/4418/125cc-cylinder-kit-yamaha-dt125r

Paid and its posted should arrive thursday (04/07)

I am now looking at a full bearing and oil seal kit... £143

[Walney-Reptiles]

Just thought i would let you guys know that the cylinder kit i ordered arrived this morning heres some photos

I have to say im impressed with the Quality just hope it lasts lol

[GoProKid95]

The build looks awesome man! Glad to see some harder ridden bikes being returned to their former glory! Keep it up and look forward to the finished piece!

[Walney-Reptiles]

@GoProKid95 Cheers buddy, it will get there it will just take time

[Walney-Reptiles]

Update So i have started to rebuild my Yamaha DTR 125 Engine today

New Bearings Fitted Replaced all of them!
New Athena Oil Seals Fitted!
New Stainless steel allan bolts!
Gear Box Back in one piece

Tomorrow i will be doing the Clutch and Balance shaft and all the gears that connect the Balance shaft and crank shaft together. i will also be putting my new athena barrel on then when the missing spacer washers arrive il put the head on.

Heres some photos of todays progress in order

Didnt need the manual much as this will be the 10th time of rebuilding these engines Super happy that im getting closer to my DTR Dream!!

[Calum]

Looking great!

[NINJA]

@Walney-Reptiles Shiny!!! :thumbs_up_medium-light_skin_tone: :oncoming_fist_medium-light_skin_tone: :thumbs_up_medium-light_skin_tone:

[Walney-Reptiles]

well im very happy to say that i have now finished putting my engine back togeather im just wating on a few bits from ethena to finish puting my cylinder head on but the rest is done Heres some photos

So upto now i have replaced with new

Stainless bolts
All Koyo bearings
all Athena Oil seals
All Athena Gaskets
New Athena topend

now i have all the rest of the bike to sort out,let me know what you guys think

[declan]

@Walney-Reptiles it’s so nice!

[NINJA]

@Walney-Reptiles Shiny!!! :thumbs_up_medium-light_skin_tone:

[mhbikesnbits]

Looks very well I like it