RCU Forums - View Single Post - Carbon on Exhaust Valve
View Single Post
Old 06-15-2017, 11:32 AM
  #3  
airraptor
My Feedback: (66)
 
Join Date: Jan 2004
Location: fairfield, CA
Posts: 4,191
Likes: 0
Received 4 Likes on 4 Posts
Default

YS recommends 100% synthetic fuel for this reason. They make more power and heat will build up the carbon fast on the exhaust valve. clean it and run 100% synthetic oil fuel.