G'day,
I have recently had the g/box rebuilt in my KX500
![grin :-D](http://www.kxriders.com/forums/Smileys/default/grin.gif)
, and they also did the piston, rings, & big-end bearings. Barrel remains unchanged.
I am unsure
![undecided :|](http://www.kxriders.com/forums/Smileys/default/undecided.gif)
how to run it in properly after hearing varying opinions ranging from:
1) Longest: 10 hours of run-in time @ 20-50% throttle with occasional blasts and multiple oil changes
2) Shortest: run for 10 minutes then cooldown, then run for 20mins & cooldown, then 30 & cooldown. Drop / change oil and offya go.
Any help or advice would be greatly appreciated !
Cheers,
H.