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 Question on installing Primary Drive front sprocket

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Vance Malone




PostSubject: Question on installing Primary Drive front sprocket   Thu Nov 20, 2014 8:38 pm

My front sprocket (I assume is OEM) has a hard rubber ring around the back and two hard rubber half moons on the front.  They don't appear to be removable and the Primary Drive front sprocket doesn't have them.  Do I need to install some sort of spacer behind the Primary Drive sprocket?  Does this affect the alignment of the chain to the rear sprocket?  

I'm riding a 2008 wr250r

This is what the sprocket on my bike looks like (rear view)


This is what the primary drive sprocket looks like (no rubber on either side)


This is what the repair diagram shows:
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rsteiger

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PostSubject: Re: Question on installing Primary Drive front sprocket   Thu Nov 20, 2014 11:16 pm

I believe all that extra stuff on the stocker is there for noise and vibration control.

Just throw the new one on and check the alignment. You should be good to go.
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motokid
Moderator
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PostSubject: Re: Question on installing Primary Drive front sprocket   Fri Nov 21, 2014 6:20 am

I've had a Primary Drive sprocket on my X for years now.
No additions or mods needed.
Mount it and enjoy.

_________________
2008 WR250X
Gearing: 13t - 48t
Power Commander 5 / PC-V
Airbox Door Removed - Flapper glued - AIS removed
FmF Q4
Bridgestone Battlax BT-003rs
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martin_nj




PostSubject: Re: Question on installing Primary Drive front sprocket   Fri Nov 21, 2014 11:16 am

yep i tossed aside the rubber crap, the bike is heavy enough as it is

also #29 on your parts list will wear out over time
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Question on installing Primary Drive front sprocket
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