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    Power valve issue

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    • T
      thechompster last edited by

      Hi peeps. I have A 2006 dt x sm. The issue is the power valve does it's cycle when ignition is put on but when I start the engine
      it goes to the right slightly as it should I think but from there on it doesn't move at all even when revving it high. Any ideas? Havnt had the bike long. Did work well for a few weeks then occasionally but now doesn't work at all in high revs.

      declan 1 Reply Last reply Reply Quote 0
      • declan
        declan @thechompster last edited by

        @thechompster check for corroded connections or loose connections

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          thechompster @declan last edited by

          @declan I did go over the connections the weekend. Some were a bit crappy so wire brushed them unless the connections are a bit dry. Didn't have any maintenance spray but will give them another clean now I have some. Would the servo make it go like that do you think?

          declan 1 Reply Last reply Reply Quote 0
          • declan
            declan @thechompster last edited by

            @thechompster it’s possible the the teeth on the cogs may have snapped it worth taking a look

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              thechompster @declan last edited by

              @declan cogs are fine as just changed the chain so checked them both.

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                thechompster last edited by

                Forced the valve open while engine running and goes like stink top end. Have noticed since I done that and tuned the ignition off and on and start engine it starts to move as it should for a few revs then stops moving again. I'm taking a guess it's the solenoid?

                Calum 1 Reply Last reply Reply Quote 0
                • Calum
                  Calum @thechompster last edited by

                  @thechompster It's a motor on these. So could be the brushes.

                  Are you sure the valve isn't just gunked up.

                  Would be worth dismantling the assembly and cleaning it thoroughly.

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                    thechompster @Calum last edited by

                    @calum it could possibly be gunked up but would it not move when you turn the ignition on?

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                      thechompster @Calum last edited by

                      @calum do you have a link for how to remove power valve at all?

                      Calum 1 Reply Last reply Reply Quote 0
                      • Calum
                        Calum @thechompster last edited by

                        @thechompster No, just take the two powervalve end caps off. The offside powervalve housing has a bolt to keep the two pieces together, make sure you don't lose the locating dowels as they're prone to falling out. You'll want to lubricate it with WD40.

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                          thechompster @Calum last edited by

                          @calum ok thanks for the help. With give it a go.

                          declan 1 Reply Last reply Reply Quote 0
                          • declan
                            declan @thechompster last edited by

                            @BraDT thats how you take it apart bud

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                            • B
                              BraDT @declan last edited by

                              @declan cheers mate 👌🏻

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                              • T
                                thechompster last edited by

                                Took the exhaust off. A bit dirty in there but rotates easy enough. Goes through the cleaning process nice and easy so all I can do now is change the servo and hope it sorts it.

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                                • Calum
                                  Calum last edited by

                                  Odd that it'll do the cleaning cycle fine but not run right.

                                  I'd be more inclined to say faulty CDI more than anything. I guess these bikes are just starting to show their age.

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                                    thechompster @Calum last edited by

                                    @calum yeah I guess they are.apart from that it runs lovely. Will change the servo. If that doesn't do it just the cdi left I guess.

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                                    • J
                                      Jens Eskildsen last edited by

                                      A friend had a faulty servo, sometime during a ride where the PV was open, it would leave it open. Other times just seem erratic. I believe the gears in the servo was toast.

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                                        thechompster @Jens Eskildsen last edited by

                                        @jens-eskildsen ok thanks mate. Very helpfull
                                        Will try another servo then and see what happens.

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                                          Mitch_350z @thechompster last edited by

                                          @thechompster just out of interest, what spark plug are you running??

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                                          • T
                                            thechompster @Mitch_350z last edited by

                                            @mitch_350z iridium spark plug

                                            M 1 Reply Last reply Reply Quote 0
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