Thread: spark plug help ec 125
View Single Post
  #4  
Old 09-16-2011, 03:08 PM
noobi's Avatar
noobi noobi is offline
Senior Member
  
Join Date: Sep 2008
Location: New Zealand
Posts: 1,031
Default
With NGK plugs the lower the number the hotter the heat range, so a BR10** is a colder plug than a BR9**. If it runs better with a 10 than a 9, I would think it might be slightly lean.
Reply With Quote