2010 yz450f cutting out in low rpm

Recently purchased 2010 yz450 first efi bike. Bike starts 3 or 4 kicks idle seems pretty smooth. when burping the throttle is seems to lug the bike to almost stall. Power is there when mid to full throttle is applied. Does not like to lug or just put around. Bike has an Athena get power ecu so I started there by buying the appropriate cables to download the stock map. Did not seem to solve problem so I think the next step is to check the valves. Is tough to start hot but will turn over. wondering if there is any reviews on the Athena ecu maybe recommend a better ecu set up? don't race just ride on weekends.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now