Question about 1983 Honda CBX 550 F-F2

1 Answer

Adjust the valves

How i can adjust the valves?This bike cbx650 not have shims, how it works?Also me too have problem, it sparking and clean carbs but the engine doesn`t want to work.
Help me.

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  • mertonmechan Jun 25, 2009

    Dear sir,



    this bike have no locknut upper of the valves but just a small metal like bullet and i think that this engine of CBX650 have automatic valves,i am not sure but it looks something like that,strange engine.Any help?

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  • Master
  • 867 Answers

Older bikes use screw and locknut, so pop off the rocker cover, bring each cylinder to tdc, (with all the plugs out).you can do this by lifting your bike of the ground and turning the rear wheel while its in first gear. with a feeler gauge,make sure there is about .004" -.008" clearance between the tappet and the valve stem, exhaust and intake.if not sure about where the tdc is , its when both tappets are the loosest. any questions , mail me

Posted on Jun 24, 2009

  • bozcro
    bozcro Jun 24, 2009

    older bikes use screw and locknut, so pop off the rocker cover, bring each cylinder to tdc, (with all the plugs out).you can do this by lifting your bike of the ground and turning the rear wheel while its in first gear. with a feeler gauge,make sure there is about .004" -.008" clearance between the tappet and the valve stem, exhaust and intake.if not sure about where the tdc is , its when both tappets are the loosest. any questions , mail me

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