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Old 05-16-2022, 05:53 AM
  #62  
Navy_Flyer
 
Join Date: Aug 2006
Location: Staunton, VA
Posts: 151
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Originally Posted by 1200SportsterRider
NF, if it has been run for 50 minutes or so, it won't improve much from there. The 125 is a 9,000 rpm engine and should be propped for that. If you have an extra Saito choke clip I'd gladly make you a more suitable velocity stack. The stock one is smaller than the 125's venturi.
There is no velocity stack on my engine. This is their 'newer' engine, no choke or stack. Are you saying a 16-6 is not correct? I don't get much better with a 15-8 either. Both props are recommended range by Saito. Maybe I should run a 16-5 or 15-6/7?