Exhaust valve open or closed?
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Thread: Exhaust valve open or closed?

  1. #1
    Junior Member Fabián's Avatar
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    Apr 2019

    Exhaust valve open or closed?

    Is this a picture of an open or closed exhaust valve? Mod done by the previous owner.
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  2. #2
    Senior Member ianh's Avatar
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    May 2009
    darlington, north east england
    Not got mine to hand but looks open to me...
    Make sure it held securely open, if the there is some movement in the flap is affects the running badly especially higher in the rev range
    Pre Benelli, ZR50SL, RS100, BMW R50/5, RD400, CB350K4, GPZ550, CB900, 750 KATANA, GSXR750, FIREBLADE, TL1000S, 955i Daytona, GSXR 1100L, GSXR1000K6.....

    Now; 2003 900 Tornado, 2008 900 Tornado, 2009 CR 1130, 2010 1130 Tornado...and the diesels...Ducati 848 for when four italians are not enough... a 750 srad ....when 5 italians are too many.......and now an '81 Katana......for those mid life crisis days....


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