Does anyone know the thread pitch of the front sprocket nut?

[maz20]

Manual just says "M22" and leaves out the pitch : ///

(oem part # 90179-22018-00!)

Edited July 10, 2019 by maz20

[Zupatun]

Standard pitch is 2.5

[maz20]

So FZ-07 uses the standard pitch? Fine pitch is 1.5 or 2 mm --- but the manual doesn't even specify"fine" or "standard". For example the rear axle nut is actually a fine pitch -- but that's nowhere specified in the manual either!

Edited July 31, 2019 by maz20

[Zupatun]

Write to Yamaha USA (email) in California...bet they got your answer.

[elmo]

Changed front sprocket today, not sure of the exact pitch, definitely fine thread.

Edited August 3, 2019 by elmo
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[ElGonzales]

Is this Bodystyle rear fender extension useful against mud everywhere after a short trip in the rain? I've installed the same last weekend...

 

But @topic.

The description of this Ebay offer for the nut with Yamaha Art.Nr. 90179-22018 says M22 x 1.0 :

https://www.ebay.ie/itm/YAMAHA-YFZ450-YFZ450R-YFZ450X-COUNTERSHAFT-SPROCKET-NUT-90179-22018-22x1-00mm-/123739141154

 

Ok, maybe not the best source of information but the only one I found atm  

Edited August 3, 2019 by ElGonzales

[elmo]

22 x 1.00  Appears to be the correct nut,  but missing the 2 small dimples at the outer edge, like the pic.

Rear hugger- Do not ride in rain or mud often, at best would keep mud off the shock.

Edited August 3, 2019 by elmo
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