Hi all, I just installed the Athena 290 kit last week and today I installed the Power commander 5. I am having difficulty getting a clear answer on if i should be running the PCV with or without the fuel manager that was supplied with the Athena kit.
I am running this map from Power Commander because it is very close to my set up:
M22-043-011
2009-2010 Yamaha WR250R/X
FMF full exhaust with Q4 muffler
290 piston kit
Stock air filter
Flap removed from air box
With the Athena fuel manager and PCV installed using the above map it makes good power, but it has a very "dead" spot off the bottom. I had this similar problem when i was running the Athena fuel manager by itself.
With only the PCV installed using the above map it doesn't make as much power, but does not have the dead spot. I also noticed it had a rougher idle this way.
Anyway, i am really hoping someone on here has been down this road before and can tell me what they have done.
Thanks a lot.