View Single Post
  #18  
Old 09-06-2013, 10:39 AM
CorkyE's Avatar
CorkyE CorkyE is online now
LawnSite Member
 
Join Date: Jun 2013
Location: Ringgold,GA
Posts: 74
Quote:
Originally Posted by YardApeMike View Post
How would you notice a backfire with that air cleaner case? I heard a suggestion that it comes from repeatably turning off the engine while at full throttle. We are now looking at these daily.
Don't know the B&S procedure but my Kawasaki manual says to start/stop at 1/3 throttle. Shutting off ignition at full throttle; it will continue to pull fuel/air mixture into the cylinder where a piece of hot carbon or a hot spot can ignite the mixture and if the intake valve is open when mixture ignites, will blow back through carburetor. This may not be a complete burn of fuel in the cylinder but create enough heat to melt that filter media. That looks like some type of nylon, is that right?
Reply With Quote
 
Page generated in 0.03743 seconds with 7 queries