DT125R ARCHIVE

I'm back!!

Been a longtime, busy and ill 

 

Anyway I have a new plan, just bought a tm34ss, and getting zeeltronic to make a cdi for me

 Carbs from a rs250

http://img248.imageshack.us/img248/959/09062009316.jpg

Like this one,  I belive the oil feed is on the carb

Hopefully get it on Tuesday, also has anyone used a ultra sonic. Cleaner?  Works well so I may Invest 

This came today :) lovely condition,  looks almost new marks are just dirt,  screws and jets perfect

 

Got to modify a manifold first,  wont fit this until the cdi has been sorted

 

Dibs On my tmx30? With manifold anyone? 

-- Edited by the only way is YAMAHA DTR on Tuesday 14th of January 2014 05:58:01 PM

It's 40mm I believe,  the 4dl has a different angle I believe

But May be an option, :)

Hmm didn't think about angle. It looks the same but i suppose it only takes a few mm :/. I got mine with the engine.

40mm sounds a bit too big. There is something i read about having too big a carb will adversely affect performance. It's to do with pressures and the vacuum created during the cycle. Too large a carb reduces the pressure since P=F/A the bigger the area the smaller the pressure.

It even had dynos showing the difference.

 

is the spigot the air intake. In which i don't know about that size 

-- Edited by Calum122 on Tuesday 14th of January 2014 06:39:53 PM

How much do you want for the 4dl manifold? 

 

And looks like the 2stroke oil mixes in the float bowl :s

It's effect is felt with two strokes two. I read it in a two stroke tuning book by graham bell.

Text directly from the book.

"Obviously the choice is yours When it comes to selecting a carburettor, do heed to my advice Regarding the size to use. Always remember that the carburettor meters the fuel according the signal In the fuel bowl. No matter how well-designed a carburettor to largely engine produces and weak signal consequently the metering system cannot function correctly.

To illustrate this you might like to try a simple experiment. Fill a container with water and draw water water up through drinking straw. Then draw the water through piece of 3/4 inch hose. Did you notice how much more sucking you have to do to get the water flowing up the piece of hose"

Used siri to get this up sorry errors.

The YZ125 runs a 38mm carb. It does have more compression though and so will be able to suck more. Remember hes got a 200cc barrel on though.

Made this a moment ago Managed to make a grab lip like it should have ,  also made it match the v-force plastic insert

Very nice mate.

That's what I had to get sorted for mine TOWIE, local bloke made me one up for a tenner, there will be someone near you can do the same if they have cable making facilities.

Been reading this, now I thought that there was a oil connection on this carburetor,  looks that I need to blank off the two nipples that have black rubber hoses on in this article, they were for some solenoid system, 

Nearly got this wrong 

Still not 100%

http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&u=http://wiki.germanscooterforum.de/index.php/Vergaser_Mikuni_TM34SS

Nice!!

Bigger carb will be my next purchase, looking at a 34mm flatside.

That's very clever. Although....looks shít! Don't get me wrong I was thinking the same thing about my bike. Perhaps maybe blue so it's a little less obvious.

And I was thinking more samco hose kinda thing.