DT125R ARCHIVE

Dt Danny · Guru

RE: My dt project

Dt Danny · Guru

And nah I'm sticking with the dt no matter what and Adian said he will pay for the damage and I think I split the case when I can off last year because I only got a tiny bit of gearbox oil out

Calum122 · Guru

Get Liam to drive to a scrap yard a pick up another bottom end mate. Start from scratch.

Luke · Guru

Save up about £400 and take it to Norfe. He'll keep you updated as well if you have him on FB.

Take all my engines to him, he's the man for engines. :) DT came back and was mint, didn't miss a beat. First time it hit the power was awesome as well as it was messed up the whole time I had it due to oil pump.

He also has my KX 80 engine right now and he sent me pictures and told me exactly what went wrong. Top bloke. A lot of people on here will vouch for him.

Also if you go for another bike, and do go for a Honda CG, it'll cost you about £800 for a decent one. You could get your engine rebuilt for half of that. So why not? You'll have a 15,000 miles fast bike. Could probably get more if you warm it up properly and don't spank it too much. biggrin

Just get Liam to work on it for you. Never go back to the guy who messed it up twice. If Liam offered to do it should have just left it for him. hmm

-- Edited by Boxing on Wednesday 15th of January 2014 03:03:22 PM

Calum122 · Guru

Yeah either use NORFE or really do it yourself. It's not difficult in the slightest. I did mine with no special tools other than the crank rebuild. Used tabular drfit and an oven and that's as sophisticated as it gets...

dread123 · Moderator

Danny did you not purchase a spare engine at some point last year? use the casing from that? either way casing is not too costly?
take the time and do it yourself properly mate- take it off road for 4-8weeks-whilst we have the ****ty weather and do all the little bits that need doing. shouldnt take you long to get engine out of frame. Then get top end sorted by taking to Grampian to skim, and get a new Gen Head gasket. Also get yourself down to Burscough bike breakers they have loads of casing parts and everything you could need. :p

Dt Danny · Guru

I'm going to send it to Norfe soon I've put the sumos on hold and yeh I have a spare side case just doesn't have an oil pump so pre mix it is can anyone tell me what the ratio it is ?

AndyYam · Guru

Danny0112 wrote:
Andy are you on about me ? and its the sump plug bolt mdk i have no idea what im going to do its sheard off so deep i wont be able to get it out it will need the whole engine split to do so so when i get the money its going to norfe

No mate, you said your mate sheared the gear oil thread right? It's easy to do but it's also easy to use a torque wrench. for alot of bolts you dont need to be so careful but there are a list of them that its worth writing downa nd having to hand in the garage.

Don't give up on the bike but if you don't feel comfortable doing the work yourself then Norfe is a good option, just make sure you take care of her once its done.

AndyYam · Guru

Danny if you need a new side cover I can do you one, just drop me a pm and ill send some photos over. I've got one i sprayed and never used and also ones that are tatty but useable.

Dt Danny · Guru

Awesome thanks Andy I've got one now of my spare engine buts it's black and doesn't go with the engine lol but hopefully it will hold and I need ore mix ratios of anyone can tell me

georgen · DTR Senior Member

When I got my dt, I found the oil drain/cover bolt jammed in with a bit rubber pipe as I found out the previous owner had sheared the bolt, when cover was off the bolt would not come out so I drilled the bolt hole in the cover and re-taped it to M8, put a small amount of sealant on a short M8 allen bolt and screwed it into hole, its a quick repair till sorted correctly that wont leak as long as you dont over tighten bolt and use a bit sealant as threads are on the thin side as original hole must be a smidge over the 6.8mm drill you have to run through for a m8 tap, saying that as mine had rubber pipe etc knocked into it mine might have opened up or not a perfect cast.
Good luck with the rebuild.

-- Edited by georgen on Wednesday 15th of January 2014 06:04:10 PM

Dt Danny · Guru

Need help the side is sorted but i need to know how to attach the oil pump so it can help the throttle close and it keeps dieing and not running off the choke after i pre mixxed ?

Calum122 · Guru

Here's a video of how the settings should be. As lame as it is it does the trick.

Also the oil pump should be pretty self explanitory. I've taken the one off my TZR engine. But don't know about others. I assume it's all the same though.

Dt Danny · Guru

any idea of why it isnt running without the choke ?

yamahayz125 · DTR Senior Member

more than likely to much oil in the feul as you said its only started since you've pre mixed ur feul

yamahayz125 · DTR Senior Member

fuel not feul

Calum122 · Guru

You'll have to check your fuel/air/oil mixture. It won't be too much causing the issue.

Dt Danny · Guru

yeh i was thinking it sounded like a blocked main jet in the carb and thank everyone for there tips

Dt Danny · Guru

Cal im on about actually fitting the oil pump mines off its got the worm screw that comes through from the clutch area but no idea how to attach it ?

anyways heres some pics for this little misshap

This is all the **** that we took out of it

Calum122 · Guru

6 pictures down mate. You see that hole woth scum on it. Using a J cloth NOTHING ABRAISIVE remove the scum. That there is a water passage. If you don't seal it correctly cause of the scum you'll have water entering the gearbox and vice versa.

Dt Danny · Guru

Yeh I got 400 wet n dry on it and cleaned it all

Calum122 · Guru

What part of NOTHING ABRAISIVE didn't get!

You must not wet and dry those surfaces. They are CNC machined faces that are completely flat. They are flat so they don't leak! FFS just ask if unsure. Do not wet and dry mating surfaces. I would have thought this was obvious.

Danny :/

Dt Danny · Guru

**** lol no I thought since you wet n dry the head I thought I'd be okay it's not leaked tho

Dt Danny · Guru

bit late now anyways it was like 5 hours ago its still fine my insurance runs out in feb so i plan on sending my engine to norfe then

Calum122 · Guru

There is a lot more surface area on the head. And oh O take it you split the cases and placed the crank case half on a sheet of glass and gently rubbed it in circular motion.

Mate. Remember mating surfaces need cnc machining.

Yeah. Could do it yourself. Easy enough. Otherwise NORFE is a good shout.

Dt Danny · Guru

yeh looks like norfe is my man i pm'ed him on facebook just waiting on a reply and then for the cash :)

Nathlaad · DTR Legend

Cals got mad anger issues caldamian son of lucifer

Dt Danny · Guru

After a stressfull night thought i fixed it and went for a ride and it started to backfire and pop flames .... i think theres too much 2stroke in there

NEV · Guru

Myself I use a pre-mix ratio of 40:1 works out as 25ml of 2T oil per 1 litre of petrol, there is a link to 'RATIO BUDDY' a program you can download to comp, in here somewhere.
If you're going down the pre-mix route.

Calum122 · Guru

See too much oil would just cause it to splutter loads and foul the plug. By no means an expert but unless you literally filled more oil than petrol I don't think that's the issue.

My bike runs more on the rich side of things than else and it just means it smokes loads on start up.