DT125R ARCHIVE

Victor · Guru

RE: 4DL TZR Engine Unmaintained!

Calum122 · Guru

Hhmm yeah but some people don't want to believe.

I think it's because there is not enough weight over the front wheel. It wants to lift on the power. Even if the wheel is not in the air it's still lifting and therefore losing slight traction.

MORE MCDONALDS!

Nathlaad · DTR Legend

We all know you don't need an excuse for a Mcdonalds Cal haha

Calum122 · Guru

It's all about Papa Johns these days... It is getting pretty bad :(

Energized · DTR Legend

LMFAO NATH!

And that's not true Cal! There's always something you can do to make her faster! Stage 3 tune, (FIT YA FOOKIN PORTO PIPE!), get the gearing sorted out!, also you tried her without the boost bottle? Try that, take off the booster plug the hole and go for a blast and tell me what you think xxx

Victor · Guru

More McDonalds xD stiffer supspension will help with that try adjusting the rear up see how it is, then try the front.

Or maybe it will be better when you have sorted the gearing, but a stiffer rear will help keep the wheel down

Calum122 · Guru

The suspensions stiff as it is mate. Remember it does have USD's, the rear has already been jacked up.

I found a guy who makes custom rear shocks.

The porto pipe. Hhmm I'm building another engine that will have another tzr gearbox in it. Nikasil ported barrel. Wossner piston and rods. She's going to be a beast!

My mate was behind me in his civic turbo in that video. And even he said the dt was quick.

I'm pleased with it. It's a heck of a lot faster than it was. Its just not as fast as the rs and I've spent a heck of a lot more than what the rs is worth.

Calum122 · Guru

Just need to weld this on now. Need to make up a little a bracket to mount the can to. Should be done this month.

Calum122 · Guru

Oil Pump Has Failed :(

Either I buy a new oil pump or I do what I really hate, pre mix.

I'm leaning on premix.

I'm going to put some quick release m6 bolts that hold the seat on. Make a storage unit under the seat that will hold vials of two stroke :) So I don't have to carry a bag everywhere.

The oil pump on this engine was on its way out anyway, it just injects a fck ton of oil regardless of how the pump is setup. Really embarrassing, but surprisingly hasn't fouled the plugs.

Energized · DTR Legend

Oh dear Cal, I hate to say I told you so! F00k oil pumps, pre mix for life mate.

Calum122 · Guru

Well it hasn't caused any damage mate. It's just failed and I knew one day it would. I don't actually think it ever worked. This is my 4dl engine not my normal engine. Premix is gash but I see no alternative.

SMurF_12 · DTR Senior Member

The pipe is beautifull... I have been thinking about getting one but I do want to use my bike off road too :|

Luke · Guru

Get a 250ML nail varnish bottle, mark out 125ML and then make a strap or something for your bike to hold the bottle. If you don't like carrying a bag.

Can only fill up 5 litres a time, if you fill up just before you hit reserve, you can brim it. I'd keep the 2T bottle filled up all the time if you aren't carrying any 2 stroke out with you.

Has the pump done your engine in?

Also people said I'd have loads of problems with premixing etc. Been doing it daily for a year now. Not a single problem. On the same spark plug as well and it isn't even an iridium one. Just had to clean the carb when I left the bike sitting for a couple of months. Really nothing complicated.

Just involves shaking the bike at the petrol pumps. I've only ever been asked twice about it, to which I explained and they were like "Ohh... *confused look*" I guess none bikers that have never had a 2 stroke would never understand we put oil in the petrol, lol.

Luke · Guru

Also you'll need a blanking plate for where the oil pump was and put a screw in the pipe near the reed block, or you'll have an airleak. I guess you already know this though.

Calum122 · Guru

No the pump hasn't damaged the engine thank god.

Yeah I'm going to feed the oil pipe to the carb. And remove the pump.

The pipe is very nice. I have still not used it yet. Owes me 250 quid and never used lmao! But thanks

oli_125 · DTR Respected Member

What about a syringe marked with the right amount an a tube on the end an plug the oil pipe on two stroke bottle then strap syringe somewhere

Calum122 · Guru

All plumbed in now and working... 60 degrees it sits at now, very happy :D

Luke · Guru

Looking nice. Only thing it needs to finish it is a underslung exhaust. Heheh, I joke. :)

Calum122 · Guru

Tell me about it! Lmao. I've got the blue prints sketched up, just need to wait for a piece of ally to turn up at work that I can use to build it. I'm in no hurry so whatever will be will be.

Calum122 · Guru

And thanks. I'm happy with how the dual rads work. Keeps very cool now.

I'm not spending anything on it till nex year probably. My starlets needs some loving and then the dt can come off the roaf for a proper respray.

Luke · Guru

If you're having it sand blasted, I'd start buying bearings for the swing arm etc. And if you haven't already put stainless steel bolts everywhere when putting it back together. :)

Calum122 · Guru

Yeah, everything will be replaced. Already got my collection of stainless. Just need to get the car tip top before I start.

Calum122 · Guru

Oh my days Guys! Not good. Bike is off the road for a while now

ringo67 · DTR Senior Member

looking forward to seeing the finished goods.....

Calum122 · Guru

Could be a while now. The bike broke on the way home today. Sprocket bearing collapsed ruining the sprocket carrier and the spacers I had made up. Will have to strip it all back and have some more made up. But I'm thinking maybe taking it off the road for a good while now to be honest. Get it all stripped back to basics and respray. But I want to finish the car first. I'm going to do this in the evenings and do the car on the weekend.

-- Edited by Calum122 on Monday 26th of January 2015 10:12:16 PM

Calum122 · Guru

Well she's all packed away into two boxes :(

I can't get it to the coaters until I sort my car out. So don't know how long it will stay like this for.

The 4DL engine is now officially for sale. So if any of you guys want a solid built low mileage 4DL bottom end let me know. Sorry but keeping the ported top end.

the only way is YAMAHA DTR · Guru

Glad someone's keeping this forum alive, where the hell did everyone go? Or any newbies?

Good work callum, maybe it'll keep up with mine ;)

Calum122 · Guru

We just got hit by spammers and it killed the site. So no not really. People these days use the Facebook forums. To be honest, that can be a good thing. It tends to be, in the kindest way, chavies. The forums tend to be for Die Hard enthusiasts that have something to contribute.

Nah mate, won't beat the 200. Not by a long shot. I've had a look at other ventures, but now It's all about tuning the Starlet. Get this DT to show condition. I made good power on the 4DL. Good power, not exceptional. But it kept that reliability, for a 125. It never failed to start that motor. I'm going to get this looks fresh and then work on getting the car running sweet.

How did you Mini go in the end? You never did update me.

the only way is YAMAHA DTR · Guru

Has this site got a Facebook page? I only come on here rarely because it's hard to use on mobile. yeah get it in pristine condition, these bikes will be our pension money oneday ;)

Mini runs sweet, new wössner forged pistons, forged conrods, de-coke on the head, remapped, induction kit

I just bought some rainsport 3 tyres. amazing!! must have in England

Calum122 · Guru

Is it N/A? How come you're running forged on N/A?