View Single Post
  #8  
Old 10-09-2012, 02:03 PM
Ridin' Green Ridin' Green is offline
LawnSite Fanatic
 
Join Date: May 2011
Location: Michigan
Posts: 8,422
The 90 is definitely a 4 stroke/mix, and it is a pro grade trimmer, not homeowner machine. Stihl recommends a one time valve adjustment at 139 hours, or as needed depending on how the machine is running.
Reply With Quote
 
Page generated in 0.03852 seconds with 7 queries