I've got a 00 mod wr400f and it seized on the weekend on my ride home after some bush bashing i was riding down the road at about 80km and it just lost all power and slowed up.
I through it was running out of fuel so i switched it to reserve and tried to take off but it just locked up the back wheel so i stopped and found neutral and tried to kick it and wouldn't budge.
when i got it home i stripped it down and found it was the big end bearing.
I have a question:
what should replace in the rebuild?
everything or just the bottom end as the top end was done about 4-5 months ago. any guidance will be very useful
Thanks in advance