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Thread: Help Help power valve

  1. #1
    ace racer uk
    Guest

    Help Help power valve


    I've just got myself a powervalve from a local breakers in mint condition. I fitted it and adjusted it the way it's been show. Took it for a spin can feel slight improvement a low revs, but there's no real pull when I rev to 8000-9000rpm and it still doesn't rev over 10,000rpm. Have I done something or do I need to change something on my cdi or something (which one is the cdi)?If so can I do this myself or do i need to buy a new cdi?


  2. #2
    ajak79
    Guest

    sound like your pv is not working,make sure ure pv installed properly,which the shortest side facing down,also check that the selonoid wire is connected.good luck.
    cheers!


  3. #3
    ajak79
    Guest

    sound like your pv is not working,make sure ure pv installed properly,which the shortest side facing down,and the pv housing open area is facing up.also check that the selonoid wire is connected.good luck.
    cheers!


  4. #4
    GanjamanUSS
    Guest

    erm


    my 2 cents

    aside from ajak's comment which seems good, remove the side panel and start the engine and see if you can feel the powervalve cable opening and closing

    also tighten the cable up a bit and then once it's fully tightened slacken it off slighty otherwise you might suffer from high speed misfiring

    THEN check you're running a BR10 plug from NGK, or relevant DENSO plug,

    then check your carb is set right, normally when it won't over rev it's running too rich, so look into down sizing your jet if you're running a 130 or something, or if you're on a 34mm carb try downsizing from 165 to 162 or 160 or even I've heard 155 works with some bikes.

    Cheers

  5. #5
    eddy
    Guest

    powervalve


    My powervalve doesnt clickvso dont worry too much, Even if it does click it doesnt mean everythings derestricted i think your exhaust is restricted !!!!

    Mine done exactly the same till i bought a derestricted exhaust


    Sorry for the bad news


    <img src=http://www.ezboard.com/intl/aenglish/images/emoticons/ohwell.gif ALT=":\"> Mick




  6. #6
    eddy
    Guest

    Re: powervalve


    tset

  7. #7
    GanjamanUSS
    Guest

    Re: powervalve


    eddy I didn't say it clicked

    I said feel the powervalve cable moving and see if it's moving a good distance before it goes slack, if not tighten it up

    that said, UK and ES bikes aren't restricted in the exhaust

    But very good point, if it is restricted you'll have to cut open the belly of the exhaust and remove the restrictor

    or buy an arrows or a tyga pipe, no restrictor less hassle

  8. #8
    ace racer uk
    Guest

    re: powervalve


    checked. the solenoid and it does move back and forth when I rev it. What kind of revs can you get out of a full power model? What revs does the power kick in and is it that noticeable difference in power?


  9. #9
    ajak79
    Guest

    Re: re: powervalve


    the powervalve will open at 2.5k rpm,then it closed back.it will open again at 8k rpm which u will feel the power kick-in.
    cheers!

  10. #10
    ace racer uk
    Guest

    Registered User
    Posts: 188
    (5/31/03 8:06:35 am)
    Reply erm
    --------------------------------------------------------------------------------
    my 2 cents

    aside from ajak's comment which seems good, remove the side panel and start the engine and see if you can feel the powervalve cable opening and closing

    also tighten the cable up a bit and then once it's fully tightened slacken it off slighty otherwise you might suffer from high speed misfiring

    THEN check you're running a BR10 plug from NGK, or relevant DENSO plug,

    then check your carb is set right, normally when it won't over rev it's running too rich, so look into down sizing your jet if you're running a 130 or something, or if you're on a 34mm carb try downsizing from 165 to 162 or 160 or even I've heard 155 works with some bikes.

    Cheers


    Could somebody explain to me how to adjust my carb it a 28mm of a 2001 reg. what it jetting? how do I replace that?

    Thanks

  11. #11
    ajak79
    Guest

    28mm carb setting(stock)
    main jet=120
    choke jet=70
    idle jet=62
    needle=set at 3rd position from top
    needle jet=bn266
    air screw=1.5 turn out


  12. #12
    eddy
    Guest

    Sorry Ganj dont know where i was reading from?


    Anyway does the bike in question sound realy tinny or muffled
    mine was muffled before i changed my exhaust i still think that is the problem mine just about touched ten! tell u what a bit of a pain take your exhaust and see if thiers spot welds along it if it has RESTRICTED

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