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DT125R Forum -> DEP -> DEP S7
Post Info TOPIC: DEP S7
DTCrazedKid


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DEP S7
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Yo, Seik, I was wondering is that an actual DEP S7 end can you have on, or isit just normal DEP with S7 graphics?
cheers now

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NathanDavies


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S7 is a 4stroke pipe?

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DT-R_bradders


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yea it is a thumper pipe m8

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DTCrazedKid


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yeah thats what I thought, hence why I was asking, but then again it's just a silencer, 2t + 4t ones do the same.. don't they?

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bkray


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DTCrazedKid wrote:

yeah thats what I thought, hence why I was asking, but then again it's just a silencer, 2t + 4t ones do the same.. don't they?



 no? 2T work off back pressure from the exhaust >.>



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1990 DT125R Sm'd

Piccys - http://dt125r.activeboard.com/t40415921/1990-dt125r-sm/

1989 DT125R (offroad)

Piccys - http://dt125r.activeboard.com/t43040164/89-dtr-into-a-true-offroad-bike/
Dickhead


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they all do the same just defrent diamiters

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Seiki


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sticker fit my wheels lol

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DT-R_bradders


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bkray wrote:

 

DTCrazedKid wrote:

yeah thats what I thought, hence why I was asking, but then again it's just a silencer, 2t + 4t ones do the same.. don't they?



no? 2T work off back pressure from the exhaust >.>

 



 



4t work off back pressure 2t work off the waves bouncin back from the expansion chamber , unburnt feul actually comes out into the pipe the then the waves coming back push it back in to the cylinder to be ignited on the next stroke , iv got a moving diagram of this happnin some wer I got frm college I'll see If I can get it up

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midnightbikerjames


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DT-R_bradders wrote:

bkray wrote:

 

DTCrazedKid wrote:

yeah thats what I thought, hence why I was asking, but then again it's just a silencer, 2t + 4t ones do the same.. don't they?



no? 2T work off back pressure from the exhaust >.>

 



 



4t work off back pressure 2t work off the waves bouncin back from the expansion chamber , unburnt feul actually comes out into the pipe the then the waves coming back push it back in to the cylinder to be ignited on the next stroke , iv got a moving diagram of this happnin some wer I got frm college I'll see If I can get it up
+1 on that, thats what i got taught at college smile

 



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DT-R_bradders


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my mem stick not working but i think this is the exact same as wat i had its not the smoothest of diagrams but u get the drift, watch the green unburnt go out the exhaust  then get pushed back in

im gonna sticky this in engine tuning



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