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DT125R Forum -> Tuning -> 2003 dt125 7000rpm???
Post Info TOPIC: 2003 dt125 7000rpm???
Derbyian


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2003 dt125 7000rpm???
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hi all.... new to the forum and could do with a little helpsmile

just purchased a 2003 dt and wont rev past 7000 -7500rpm under load? but when free revving it wil reach 11000rpm ish.

stripped and cleaned the power valve...set it up to the spec on the link.

taken the reed switch out and put it out the way, engine number starts 4BL  its not functional?

cleaned air filter

new spark plug

cdi 3RM-30 restricted?

its got a after market exhaust and can on but not sure what make.... not dep

 

any help appriciated and thanks in advance!!!



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Derbyian


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power valve is doing its cycle when turning the key

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braddtr125


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peg the powervalve open and see if that does anything



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Derbyian


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not to sure how to do it to be honest? power valve is turning clockwise on the servo? should it go anti clockwise?

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dtr200691


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fink its ur cdi mate my 1st 1 did that just coughd n spluttered at 7000rpm n wudnt go over checkd the wiring it itd been snipd n bodge everywere including wires to reed switch so sent it back mite be worth trying new cdi if u can find 1 cheap

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Derbyian


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Power valve seemed to be turning the wrong way so crossed the cables over and it seems to go to about 8500 -9000rpm and is pulling wheelies when the power band comes in. Not much bottom end now though but can live with that. Sounds 10 times better now. Sure the neighbours will love it at 5am every morning

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NEV


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Derbyian wrote:

Power valve seemed to be turning the wrong way so crossed the cables over and it seems to go to about 8500 -9000rpm and is pulling wheelies when the power band comes in. Not much bottom end now though but can live with that. Sounds 10 times better now. Sure the neighbours will love it at 5am every morning

 Try going through that powervalve set up link I put up on here, if you do it step by step, you'll have the powervalve set up so it goes all the way from low to high revs as it ought to



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