Ducati Monster Forum

Moto Board => Tech => Topic started by: 118811 on February 26, 2012, 07:31:14 PM

Title: Countersprocket play?
Post by: 118811 on February 26, 2012, 07:31:14 PM
I bought a new chain, front and rear sprockets from cacycleworks.
Front is a steel JT brand.
My mechanic called me to come have a look at the fit....there is quite a bit of play on the shaft,
Is that normal?

Thanks
Title: Re: Countersprocket play?
Post by: Howie on February 26, 2012, 08:55:12 PM
How much is plenty?  In what direction?  Is the retainer plate worn?
Title: Re: Countersprocket play?
Post by: 118811 on February 26, 2012, 09:12:25 PM
Quote from: howie on February 26, 2012, 08:55:12 PM
How much is plenty?  In what direction?  Is the retainer plate worn?
Enough for my mechanic...to have me look at it.  Yes, the retainer plate was quite worn, thankfully he had another to use.
I am replacing a 14T Jt sprocket from CaCycleworks & going back to a 15T.
My mechanic is a strong advocate of using OEM Ducati parts.
We put on a oem sprocket on there just to see the fit...it was tighter..a better fit. 
But, still more play than I would expect. :-\
Title: Re: Countersprocket play?
Post by: Howie on February 26, 2012, 09:21:10 PM
There will be some axial movement on the output shaft.  My guess is as long as the movement is just the sprocket on the shaft in the axial (horizontal) direction you are good, but over the internet, just a guess.  Is there another Monster you could compare yours to?
Title: Re: Countersprocket play?
Post by: Speeddog on February 26, 2012, 09:33:13 PM
how many miles on your '98 M900?
Title: Re: Countersprocket play?
Post by: WTSDS on February 26, 2012, 09:37:17 PM
In the old day Ducati did it better with a large nut and lockwasher holding the front sprocket

It's a cheapjack way but it works well so long as the retaining washer is replaced now and then

OEM sprockets are also loose, fit doesn't matter with that set-up  
Title: Re: Countersprocket play?
Post by: Desmo Demon on February 26, 2012, 09:47:22 PM
As long as the retainer didn't wear enough to allow the front sprocket to "walk" like this one...

(http://i32.photobucket.com/albums/d32/Kramer_Krazy/spacer_2.jpg)

And your output tranny splines are not damaged like this one...

(http://i32.photobucket.com/albums/d32/Kramer_Krazy/spacer_7.jpg)

You should be fine with a new sprocket and new retainer. As others have stated, it is designed to have some wiggle room.
Title: Re: Countersprocket play?
Post by: 118811 on February 26, 2012, 09:50:22 PM
Quote from: Speeddog on February 26, 2012, 09:33:13 PM
how many miles on your '98 M900?

33K
???
Title: Re: Countersprocket play?
Post by: 118811 on February 26, 2012, 09:52:25 PM
Quote from: howie on February 26, 2012, 08:55:12 PM
How much is plenty?  In what direction?  Is the retainer plate worn?
Sorry, I didn't answer your question earlier.
Wiggle front to back? :'(