#64 jet solves 4 stroking at high speed for me

Wm Holden

New Member
as said...switch from 70 to 60....too lean..starved at top end.
put in the #64 and she screams.


2011-10-31 12.49.05 chopper brake lighttn.jpg
 
with my needle clip in the 4th slot (top slot) it runs better at low revs, but also starved at the top end like yours
what to do...?
 
turn off the petcock and if it revs better for a moment before starving out...you are to rich.
mine is perfect at the top end

my 4 stroking was from a rich condition
 
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