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DT125R Forum -> Tuning -> ffs
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Seiki


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Oh great so i'm riding to Yamaha to MOT and engine siezes up. Just goes dead, kickstart wont even go down. Pushed it the rest of the way and its now at Yamaha. Gonna pick it up tomorrow as I dont have the money to pay them to repair it.

Hoping its the topend but with my luck it's the bottom.

I just paid £1200 to repair my van after putting unleaded in it by accident.


Not my month at all evileye

wondering if I should just source a newer engine

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craigbulmer


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It will only be your topend mate.. £120 quid should see it rebuilt with a rebore and genuine gaskets.


Ouch!!

Nah dont source a new engine lol at least have a luck first

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Yamaha DT125R - 2003
Seiki


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Cool man yeah ill pick it up in the morning and start stripping it again

but ffs man wtf grrrrr lol

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Seiki


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also anything else I can do to it while its stripped to try and suck some more power out?

fancy carb or something?

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midnightbikerjames


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exactly the same as me mate, kick start would not go down and i thought it was the top end. well actually it was but the piston has a whole in the top (post pic later) and all the crap fell into the bottom end and got caught up in the bottom end and seized up, needed a complete rebuild :/

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56.jpg
craigbulmer


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Yeah haha, well at least its not your only transport, it was mine when I had to rebuild it.

Get the head skimmed, higher compression, the general rebuild will make it more powerful than it was before. Ask robin about carbs, he had a bigger one fitted to an old dt.. i think anyway.

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Yamaha DT125R - 2003
Seiki


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Ok fluck it full rebuild it is then, this sucks a$$ :(

revving it you could hear all sorts of noises coming from the engine and it was getting difficult to pull off in 1st let alone any other gear.

I hate problems

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midnightbikerjames


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IMG_0326.jpg

bottom end stripped and brand new cylinder all because of one piston -_-

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56.jpg
Seiki


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damn how much is it costing you? Are you stripping yourself?

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Dickhead


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i would put in a newer engine tbh how manny miles has yours done once you do a full rebuild you still may end up with an engine with 30k on the internals



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midnightbikerjames


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i got quoted £200 labour :0
yea ive rebuit it now just waiting on the gaskets :)
its cost me about £150 for cylinder piston gaskets gear oil etc.
the bottom end i just cleaned out and put back together.


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56.jpg
Seiki


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Last year it had around 14k on clock before I sold them so I reckon add another 1k to that as I hardly use it. Engine prices are £350 up from what I can see on the bay ffs

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Seiki


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Yammy want £120 to strip and £120 to put back together + VAT and parts

NO

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midnightbikerjames


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ouch, do it your self ? rebuilding mine was a first for me, quite chuffed with myself :D all you really need is a flywheel puller

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56.jpg
Seiki


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yeah ill do it myself as i have no choice lol

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NathanDavies


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or pjme :)

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Seiki


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pj you? you coming onto me mate ? lol

Not a good time for me to be social tbh lol

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NathanDavies


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lmao no PJME, they deal with 2 strokes, type pjme in google.

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Dickhead


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ive got a good bottom end from dtre/x

if you rebuild your bottom end get a new crank from

http://www.adrenalin-pedstop.co.uk/p-Top_Racing_original_crankshaft_for_Yamaha_DTR_125cc-3890.aspx


ive got a set of new koyo mAIN beringas and seals new in box ive never used


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Malc


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Be worth trying to determine why it seized on you too...?

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Dickhead


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high miles ? they ushaly let go about 10k onwards

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Seiki


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No idea but ive got myself all ready for a full trip down again, might aswell since it's stll raining

The bearings you have are those ones i'll need?

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Spartan


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Seiki that seriously sucks, and with your van dude why is that so expensive too!?

Didn't you rebuild you engine then at the time you built you bike with all new parts?

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DT125X 2007
Seiki


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Fuel pump etc on van had to be replaced and near enough most hoses, filter etc :(

The engine is the only thing that didnt get rebuilt. It's run absolutely fine all year and then today happens. I couldnt rebuild it last year as I was seriously tapped out in dough and the fact it worked gave me the break I needed.

Trust me nobody's luck is as bad as mine at the moment but siht happens I guess, hopefully it gets sorted.

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Spartan


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I got as far as putting my hand on the unleaded pump once one early morning, my car is diesel...but that was it before realising to myself what I was about to do. I thought it would have been a case of, oh i'll just get some hose and suck it all out. How wrong I am! Yeah hope things get sorted dude.

On the plus side, after a rebuild and a run in your bike will run sweet bet you will notice the difference.

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DT125X 2007
midnightbikerjames


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i dont think anyone is having luck atm..
if there is a god hesdoing a **** job lmao

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56.jpg
Dickhead


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Seiki wrote:


The bearings you have are those ones i'll need?




yes pm sent  

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fray


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Gutted for you buddy, hope when you strip the engine down theres minimal damage.



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Seiki


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Engine is dead, needs a new everything

carried bike back upstairs and gonna strip it all down again

will make a pic thread tomoz

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Spartan


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Bugger but only top end tho right Seiki?

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