ECU swapped, EJK adjustment?

[jbsurf]

Just replaced the ECU with one from the 300R, will I need to do an EJK adjustment?

[Cyclic]

I would think so, monitor how it performs and adjust accordingly.

[CheapoWes]

Here's my story and you can see how it relates to yours.

Destroyed 250L engine

Swapped CBR250r engine

Kept 250L ecu for a long time with EJK

Recently swapped cbr250r ecu(with ejk) bike was much faster

Returned all settings to 1 on the ejk and the bike is faster and gets better MPG. 

 

Why did you swap a 300r ecu? IMO if you have a 250L engine then try my method of leaning out the EJK because I believe(no info to back this up) that the CBR ecu's enrichen the bike which is why people are reporting HP gains from the swap(dyno results of a 4hp gain on the FB group = HUGE).