Our snowmobile club is trading up a 2006 Pisten Bully Edge for a 2007 Edge. The dealer states the the 07's are Tier III engines. Aside from the lower NH and Nox levels, does anyone know what actually changed on the engine and are they improvements or otherwise? One mechanic I talked to said they corrected some fuel line/rail issues but I would like to hear from any of you that might have any knowledge on this stuff. For the king size bucks one has to shell out for these things, it's nice to know what you are really getting.
TIA
Rick
TIA
Rick