Re: High rpm stutter suddenly appeared.

Posted by seestheday on Jun 04, 2013; 1:35pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/High-rpm-stutter-suddenly-appeared-tp4041754p4041756.html

I would look at both electrical (spark) and gas delivery.

Did the garage do any other work other than syncing the carbs?  Did they take the carbs off?  Did they pull the spark plugs?

These bikes have known issues with weak sparks.  That is why so many people upgrade to Accel or Dyna coils.  It might even be as simple as fouled plugs though.

The stutter doesn't just happen when the bike is cold does it?  It's fully warmed up when it does this?

Mine will stutter around 4-5K RPM's when it's cold.