mikuni hsr 45??

Discussion in 'Engine, Fuel and Exhaust' started by gottenbacher, May 14, 2010.

  1. gottenbacher

    gottenbacher Member

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    does anyone know what size engine these work best on. HP, cid, etc. how does it flow compaired to the hsr42?

    thanks glenn
     
  2. rancid

    rancid Active Member

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    45 works well on up to 103ci making up to about 130 hp, 42 is good for mild tune up to about 95ci 48 is for monster big bores making upwards of 150hp
     
  3. Breeze3at

    Breeze3at Well-Known Member

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    If in doubt, go smaller. Smaller carbs. make better torque, and are more rideable, because a too large carb is not getting enough flow to work efficiently.
     
  4. FishHunter

    FishHunter Active Member

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    A 45 Mikuni is a very potent carb.
    Could be used in high hp applications in engine sizes as small as 88", and could still be used in 117" touring builds.:)
    Scott