RAMSOMAIR
TY 4 Stroke God
Thought this was the case.
yamamarc
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I got a bushing from a member here winderallday!! He ordered them from McMaster-carr in the US.
Contact him for the part #
InRBigness
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I know that the sidewinder gear and bushing now come with oiling holes. Does anyone know if the Viper ones also have been updated or do you have to drill your own holes?
yamamarc
TY 4 Stroke God
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My upper gear on my 19 had oil holes and my bushing still wore badly after 3000km
Rerhardt
Veteran
What bushing are you using
twyztid
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The holes aren't really going to make a difference. This is not an oiling problem. It is a misapplication problem. The teflon coating on the stock bushing can't hold up to the shock load. The wear isn't from rotational forces because the bushing ONLY spins on the shaft when in reverse.
Yamaha SR Viper / Arctic cat Zr7000 Upper Gear “Super bushing” Replacement | eBay
<p>Arctic Cat ZR7000 / Yamaha SR Viper Upper Gear Super bushing . Condition is New. Replace your upper gear bushing before it fails and causes catastrophic damage to your chain case !! Shipped with USPS First Class.</p>
www.ebay.com
Isn’t the only time the shaft turns on this bushing is in reverse. So if you go less in reverse wouldn’t the bushing last longer.Yamaha SR Viper / Arctic cat Zr7000 Upper Gear “Super bushing” Replacement | eBay
<p>Arctic Cat ZR7000 / Yamaha SR Viper Upper Gear Super bushing . Condition is New. Replace your upper gear bushing before it fails and causes catastrophic damage to your chain case !! Shipped with USPS First Class.</p>www.ebay.com
74Nitro
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No, It is the load while going forward that wears the bushing out. The bushing is too small for the load applied to it.
In addition, the material of the bushing is part of the problem. Too soft.
So can you buy or make a tougher bushing.
Yes only time it turns is in reverse but the bushing is always supporting the gear which is driven by a chain which is never perfectly smooth on gear and the shafts are probably not perfectly Parallel. Whatever the cause it happens and just need to maintain it.
The one I posted is what I am using. It is not stock. Lots of choices.
