Disc nut torque setting

[XS850]

Hello all - does anyone have a torque setting for the front disc (CB400F) securing nuts (4 off) please - can’t find anything in Haynes or the Honda booklets I’ve got, nor can I find it through a search on here!

Many thanks - Bruce

[McCabe-Thiele (Ted)]

On the 500 that has six  8mm nuts its 13.0 to 16.6 ft lbs the 400 is probably similar setting.

[taysidedragon]

Ted's figure is correct. 8mm bolts on 400f. Use the lock washers as well or shallow nyloc nuts.

[XS850]

Thanks Ted & Tayesidedragon - is there a lock (tab) washer available as there’s nothing in the parts fiche? They came off with just a shouldered nut and there’s limited free bolt (original) length to fit a shouldered locknut or plain locknut with washer!

[Nurse Julie]

No lock washers on those nuts on the 400/4 . Just a flanged nut.

[taysidedragon]

No lock washers on those nuts on the 400/4 . Just a flanged nut.

There are lockwashers shown in the Honda manual. Were they only fitted to the 350f?
I fitted shallow nyloc nuts to my 400 because there is not enough space for a full height nut.

[Mikep328]

There are no lock washers shown in the Honda CB400F parts book (page 19) for the four disc attachment nuts, only the shouldered nuts themselves.  Maybe a change from the 350 four?

[McCabe-Thiele (Ted)]

My 400  had the flanged nuts as per the parts book & NJs post I don't think my hub had ever been dismantled previously.