Yamaha and timing chain probs

[GEN 3 SHO FAN]

Long ago, I rode somewhere that Yamaha had timing problems with others engines in the late '90s. Sadly, I don't remember where I saw this...

But Yamaha still have problems with some timing system on their engines even today.

http://greenhulk.net/forums/showthread.php?t=250982

It's a little bit ironic, they call this SVHO...