1997 FZ400

[markaboot]

I would not think so, it may fit in the hole but it looks to short
What exactly do you mean by "I have worn the backing off my intake chain damper and this may be a solution."?
Ther are plenty of FZS600 ones on ebay at reasonable prices

i mean this, think this combined with a worn tensioner could be the source of my rattle.





photo taken down the tensioner hole, looks like the damping material on the intake side cam chain damper has worn away.
my intention is to modify or build a manual tensioner with some damping material on the end. failing that i'll have to split the case and replace it