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Dt 125 Cylinder head

#1 User is offline   profscooter 

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  • Bikes:Yamaha dt125r 97 frame with 02 motor

Posted 19 June 2010 - 10:23 PM

Hi to all, i've recently bought a dt 125 r whick i believe to be a 91 model but not sure. Still has the frame and engine number but my local bike shop couldn't find the year of the bike, i do know for sure though that t is a pre 97 model as it doesn't have the electric power valve motor fitted.

My question is, can i fit a later cylinder head to my original barrel as my cylinder head has been damaged as some tight fisted twonk fitted a cheap ass piston which has began to break up and damaged the top of the cylinder head just a few wee dents but i'd rather replace it or would i maybe get away with it?

Has anyone got a top end for a dt 125, also looking for a rear silencer??? I live in Dundee but would be willing to travel but not too far.

Thanks for looking

Scott
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#2 User is offline   Paulwhite 

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Posted 20 June 2010 - 08:53 AM

if the head only has a couple of dints that are hardly noticeable then you can get away with it, but if there are deep chunks then ul need a new one. you could always sand the inside of the head, to smooth out the dents if you really wanted to (might even improve performance a little) just get some wet/dry on it and rub it for a week or two should sort it out lovely! you may also want to put a 0.5 bigger jet in to compensate for the work.

hope this helps
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#3 User is offline   oldgitonabike 

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Posted 20 June 2010 - 08:57 AM

Any pictures?
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#4 User is offline   profscooter 

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Posted 29 June 2010 - 10:04 AM

View Postoldgitonabike, on 20 June 2010 - 08:57 AM, said:

Any pictures?

Nope no pics but the head is beyond repair... few chunks been taken out so just going to bin it. All good though theres a guy in my local area with bits for sale.
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