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DT125R Forum -> CYLINDERS -> 200cc ,zeeltronic, 3xp, v-force, dep, tm34ss, yz induction hose mod
Post Info TOPIC: 200cc ,zeeltronic, 3xp, v-force, dep, tm34ss, yz induction hose mod
the only way is YAMAHA DTR


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THE holy grail, 3XP00 cylinder prodject
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forgot my camera :(

but got alot done, my engine came with half a sc125 frame lol

the pistons crown was melted and the skirt was no where to be seen and the flywheel nut had to be cut off

the crank is rusted like a biatch

all the rest was good, the head 3MB is perfect

the stator and magneto was the same as the dtx and re

so im fitting my one from my bike and the electrics, stripped the whole engine down.

good news the gears and flywheel fit on the crank shaft (blaster) and the crank bearings and seals are the exact same size as the DTR125

measured the crank and it is the same size apart from the diametor, which the cases will need boring out,

all looks hopefulbiggrin, will take my camera next time, you got to see the piston and crank ...FOOOOKEEDDD

i am not building it at home because my tools arnt as good.

will be selling all the spares



-- Edited by the only way is YAMAHA DTR on Monday 28th of May 2012 06:02:58 PM

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Energized


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Yeah baby get us some of that p0rn up so we can have a good whack!



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NorDt


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How much does a 2nd hand magneto cost ?. aprox, i would want to try making one lighter and see if there is any power to be gained from it

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Sold the DT, Bought a WR 426. Sorry guys.
the only way is YAMAHA DTR


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£20-£40, you have electric start , the seem to cost more, i will be selling my dt125re/x one when i have built the 200 enginebiggrin

 



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NorDt


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Ill consider buying one then.

Chances are i cant be bothered to really do it.. Im a big dreamer, A small do-er, I have all this stuff i want to do. but i never bother.

Once i get a car and a drivers licence for a car. My dt is going to the garage and maybe into the Project topic on this forum.

I just wanna have all the time in the world and get the frame sandblasted and powder coated. And i can never be bothered to now since i need it for transport..

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Sold the DT, Bought a WR 426. Sorry guys.
gasto


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Nice project there.Thinking of doing the same with mine but at the end bought a 3et complete engine.
The flywheels have different timing between 125 and 200 so you have to machine it.Also the 200 has different crank gear and clutch basket gear with lowest ratio than the 125.
The crankshaft you bought is for dt or a blaster?How much it cost you and where from?

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the only way is YAMAHA DTR


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yeh i know about the timing. got some help on that one,

its a blaster crank, its slightly different to the dt200 crank

the crank driving gear will fitt it but the washer needs removing or a thinner one,

cranks from ebay £95



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the only way is YAMAHA DTR


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06062012412.jpg06062012405.jpg06062012407.jpg06062012411.jpg06062012415.jpg



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the only way is YAMAHA DTR


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06062012419.jpg06062012422.jpg06062012423.jpg



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the only way is YAMAHA DTR


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so the cases are at the engineering place to get bored out

the red line on the inlet pic are going to be opened up , but by hand and not cnc, the tranferports have been marked where to open them up bigger,

heads at the powdercoaters

the R/H side of the crank is 4.5mm shorter than the original, so the will be some modding to the crank gear/nut/washer to make it fit,

all coming togethersmile



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NorDt


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Sounds great m8, What size and type of carb are you planning on using on this ?

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Sold the DT, Bought a WR 426. Sorry guys.
the only way is YAMAHA DTR


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to start with my tmx30,(same as wr200/lanza dt230)

then i might get a bigger onewink



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NorDt


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Cool.

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Calum122


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Looking wicked.

can't wait to hear her fire up!

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The Leviathan Project
the only way is YAMAHA DTR


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as the crankcase still are waiting to be machined (the place is very busy)

got a few flashy pics

18062012437.jpg18062012438.jpg23062012439.jpg23062012442.jpg23062012443.jpg



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NorDt


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That cyllinder and top looks AMAZING !!!.

But how weird the exhaust valve looks xD are they like that standard ?

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Sold the DT, Bought a WR 426. Sorry guys.
NORFE


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yeah they match the boost ports in the barrelsmile



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NorDt


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Bet that bike is gonna fly, Wouldnt have a hard time wheelieng that for shure ! :P

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Sold the DT, Bought a WR 426. Sorry guys.
the only way is YAMAHA DTR


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biggrinbiggrinbiggrinbiggrinbiggrin



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AndyYam


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Just had a skim read through the 1st and last page. Looks interesting. I'm not sure about 50bhp though. I had a dt200wr which is what a 3xp barrel comes from and standard they are 33bhp I believe. My rd350 puts out 59bhp so I would be very surprised if a 200 head on a 125 bottom end could put out 50bhp.

Looks like a very interesting project though so can't wait to see it all finished. I still havnt got you d to finishing my dt200wr project. Will start a thread for that too at some point.

Is that barrel nikisil plated then? how much does it cost to get it re played because it can't be re bored can it?

Andy

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the only way is YAMAHA DTR


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they lost my crank cases, but they will find them or buy me some new ones

i dont reckon 50bhp but im gona get it over 40hp

didn't need a replate was fine, i just want to build thissmile



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NORFE


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AndyYam wrote:

Just had a skim read through the 1st and last page. Looks interesting. I'm not sure about 50bhp though. I had a dt200wr which is what a 3xp barrel comes from and standard they are 33bhp I believe. My rd350 puts out 59bhp so I would be very surprised if a 200 head on a 125 bottom end could put out 50bhp.

Looks like a very interesting project though so can't wait to see it all finished. I still havnt got you d to finishing my dt200wr project. Will start a thread for that too at some point.

Is that barrel nikisil plated then? how much does it cost to get it re played because it can't be re bored can it?

Andy

 a few places can do it mate

they chemically strip the plating off then bore to size then replate



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GADGET


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Then with a nice diamond hone its perfecto ,£120 ish

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AndyYam


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Ah cheers. When i get back to my dt200wr i'll see if it's needed. Hopefully not. I've got a genuine Yamaha piston NOS to go in when needed. How far away do you think you are from getting this on then TOWIYDTR?

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the only way is YAMAHA DTR


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have all the bits, just waiting for the cases to come backfurious

then got to build it, sort out timing, fmf pipe, and rejet carb

 

funfunfun to me anywaybiggrin



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the only way is YAMAHA DTR


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good newssmile cases got found, bloke said if you want them done today set the machine up, so dad just done it in 5 mins, all the fuss about nothing lol,

now should have them by saterday monring smile

the tuning will commence



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GADGET


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Yeah man can't wait ,been watchin this ,glad to hear you had some luck man ,we all know how these projects can have their ups and downs ,it's all part of the fun ha ha

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the only way is YAMAHA DTR


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hah ye right, gona do the transfers by hand, got the tooling, these guys taking to long so they just done the crank housing, then get the bottom end built up,

work out compression ratio

timing

jetting

fmf pipe

lots of work

re-enforce clutch springs



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GADGET


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All the brain work takes me back lol,been there man ,looooooooonnnngggg ha ha

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the only way is YAMAHA DTR


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just hope my calculations are correct haaha



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