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Post Info TOPIC: yz 125 project :)


DTR Senior Member

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yz 125 project :)
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hey all just bought a yamaha yz125 which is road legal :) bonus lol more pics will be up soon just need to put plastics on then this project will begin just like the derbi senda project i had which is a rolling frame at moment pics will be posted tomoz

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Senior Member

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Posts: 151
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few pics

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


Nonce

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wot year is it ?

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DTR Senior Member

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89 mate just havin a rebuild on it at moment got it cheap :)

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Senior Member

Status: Offline
Posts: 151
Date:
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few more pics

Attachments
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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Member

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guna be mint when done.. ill pop up and give u a hand or whateva.. n can go for a spin round ya end lol

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RIDE : Yamaha Rd125lc 1983


DTR Senior Member

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ye mate once get piston for it ill be out on it lol :)

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Senior Member

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Posts: 151
Date:
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any 1 know any good sites for graphics for my yz ? wanna supermoto it now got sum nice anodised blue rethal bars for it so far and just had to order new piston 1.00mm over size life is fun lol

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Senior Member

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Posts: 151
Date:
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few pics of progress not much tho

Attachments
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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Senior Member

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Posts: 151
Date:
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what u think ?? should i lower compression so can use it on road and last longer or keep as normal with tuned top end

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Senior Member

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Posts: 236
Date:
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Id gear it up a little more, and run a good 2 stroke oil , at a good ratio. Probly get a month on the top end using it every day. But you will probly need to re build every 2-3 months. Bit pointless for every day use.

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       merry crimbo


                                    FSD"!"$£!"$



DTR Senior Member

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ye thats cool got it dirt cheap so i dont mind as its sweet once rebuilt it will be back on the road gonna mess about with sum sprocket sizes see what happens

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Senior Member

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Posts: 360
Date:
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how much you get it for mate?it on a daytime mot as no lights etc?


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yam r6 2009



DTR Senior Member

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250 mate n yea but gonna put full lighting system on it tho want it supermoto style :)

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Senior Member

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Posts: 151
Date:
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decided silver dont look good so gone with black glosee frame and silver swing arm will put more pics up in next day or so as just rebuilding engine at moment and honing the cylinder for new piston which is a modified dt125r piston so will last longer as not as much compression which is better for road use just recieved sum nice yamaha decals for swing arm too in blue and a rear braided hose to match front one anyway keep looking for new pics

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


Guru

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Modified dtr piston? what you done to it lol?

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Yamaha DT125R - 2003



DTR Senior Member

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all i done is curved the bottom of the piston so does not hit on the bottom of the case but works perfect and rings dont catch on any ports :)

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Senior Member

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Posts: 236
Date:
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Cool , but the whole point in that engine is so it revs nuts, If it doesnt , then the pipe might cause problems, maybe . ... good luck

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       merry crimbo


                                    FSD"!"$£!"$



DTR Respected Member

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dirtbikebitz.com they have nice graphics, even custom ones made if ya want to personalize it lol

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DTR Senior Member

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it will be ok done it on a few bikes now just lowers the take off speed which i dont want really as faster take off will nack the piston again lol and cheers about the graphics mate

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


Nonce

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Posts: 519
Date:
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got any pictures of the piston and stock dt pistons are ****e

dont se how a piston made for 30hp and 10k+ revs is less reliabull than a dt piston thstta desinds to be at 8k and alot les power probaly under 22

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DTR Senior Member

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ill post sum pics tomoz mate just getting everything else done lol and many forums said anything with 2 piston rings will last alot longer than single ring like the style of the yz compared to dt so will be alot better once all done

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Senior Member

Status: Offline
Posts: 151
Date:
Permalink  
 

few more progress pics

Attachments
__________________
dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Senior Member

Status: Offline
Posts: 151
Date:
Permalink  
 

whats your thoughts stick with nobbleys or go supermoto on my yz as its going bk on road very soon once engine rebuilt

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


Guru

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Posts: 1160
Date:
Permalink  
 

Try it out on the road and see what its like first, then maybe supermoto :)

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Yamaha DT125R - 2003



DTR Senior Member

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Posts: 151
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cool will do just want sum new ideas for it

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


Guru

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Posts: 1160
Date:
Permalink  
 

Thought the frame was going back to black? Would look good white.

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Yamaha DT125R - 2003



DTR Senior Member

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Posts: 151
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it was white at first but a bad job so did it black n decided to go for silver lol just testing at moment

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


DTR Senior Member

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Posts: 151
Date:
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did not know yz 125s cost so much to build lol just spent over 500 on little parts :) atleast will be all mint

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dtr 125 engine in derbi senda
full arrow exhaust pipe
30mm mikuni carb
full power cdi
power valve fully open


Guru

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Posts: 1160
Date:
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What have you bought so far?

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Yamaha DT125R - 2003

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