4overbanshee Posted September 20, 2013 Author Report Share Posted September 20, 2013 Before you tear it apart, do a leakdown test. You never know what some hacktard that built the motor did. If it passes leakdown, then replace your reeds and do a leakdown test to make sure your reed gaskets aren't leaking. I am leaking some oil out the front so I will need to tear into it anyways. Since you've worked on auto engines for some time......reed "valves" on a 2 stroke are the literal comparison to valves in a 4 stroke motor. Different is.....they are a spring loaded flap......its intent is to let air/fuel pull the reed open using vacuum to suck the air/fuel charge in....and on a 2 stroke since there is exhaust back-pressure/reverb.....when the pressure comes back due to the exhaust.....the reeds are meant to snap shut and be held shut by the pressure. That makes complete sense. Knowing little about 2-strokes my first thought was a valve train issue (bent valve or broken spring). Thanks for that comparison, helps me understand the problem a lot better before I dive into fixing it. The only other 2-strokes that I've owned have been outboard motors and those have thankfully always ran great for me. Quote Link to comment Share on other sites More sharing options...
Starwriter Posted September 21, 2013 Report Share Posted September 21, 2013 Oil leaking out the front is probably just a leaking O ring at the exhaust connection to the cylinder. Messy, but not a big deal. You really need to do these things before you "tear into it". 1. Leakdown test 2. Buy Clymer manual 3. Read through this. http://bansheehq.com/forums/index.php?showtopic=140912 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.