1. 

   Crazy New Member

   Messages:

   2

   Put a 70 cc and race exhaust on a primavera but won't accelerate ?

    

   Crazy, Jun 6, 2018

   #1
2. 

   Buzz Active Member

   Messages:

   446

   Not really enough information for people to help you?!
   You have added a 70cc kit and exhaust so do you increase jet sizes and what size carb are you running?
   17.5mm carb minimum and increase jet from standard to about 35 / 40% bigger and try again.
   19mm carb might be better

    

   Buzz, Jun 29, 2018

   #2

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