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Very Active Member
VTwin and Red Dust ??
Is the red dust on the front sprocket an issue on the 998 VTwins?
David C
2016 F3T
DIY Garage Door Opener & GPS Mount
Battery tender cable
Rear IPS Pack Rack
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Very Active Member
2020 F3 Ltd
Spyderpops Bumpskid
Spyderpops Brake/Run/Turn Signal LED's
Lamonster Garage LED Fog Lights and Headlights
2013 ST-S retired 1/9/16 at 25,061 miles
2015 F3S sold at 77,565 miles.
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Very Active Member
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Very Active Member
It's been an issue since day 1. A year or so later BRP issued a TSB saying that the failure was due to 'insufficient clamping force' applied by the bolt at the factory and directed dealers to retorque the bolt to a higher spec then mark the head with a X to show it had been done. The TSB was 'published' on this forum at the time, probly by Lamonster. I think the latest torque spec for that bolt is 110ftlb.
If applying lube to the spline it is critically important that the lube does not get onto the inner face of the pulley or the mating face of the shaft - just the spline only.
The best substitute for brains & knowledge is....................silence.
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Just curious, does the bolt tighten down on the shaft, or onto the sprocket? My VFR has the bolt tighten down on the shaft, that way the sprocket is
free to "float" a bit on the shaft. Hence the use of some kind of lube to keep wear to a minimum. I put anti-seize on the sprocket, but not everyone
does, but the number of failed sprockets due to spline failure is minuscule.
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Very Active Member
The bolt tightens onto the pulley - this provides the clamping force BRP speaks of here, way back in Dec 2009 when I got my Spyder:
https://www.spyderlovers.com/forums/...t-BRP-Bulletin
See post 54 for copy of TSB.
but the number of failed sprockets due to spline failure is minuscule. but if it happens to your trike, the consequences of such a failure are far from miniscule.
The best substitute for brains & knowledge is....................silence.
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Originally Posted by Freddy
The bolt tightens onto the pulley - this provides the clamping force BRP speaks of here, way back in Dec 2009 when I got my Spyder:
https://www.spyderlovers.com/forums/...t-BRP-Bulletin
See post 54 for copy of TSB.
but the number of failed sprockets due to spline failure is minuscule. but if it happens to your trike, the consequences of such a failure are far from miniscule.
Amen on that.
Seems odd that sprocket tightened down like that would work loose. I wonder if that flywheel addition to the sprocket could have some bearing on it. I wonder if anyone has
checked a sprocket for balance. Maybe if that weight was off center a bit you might have some issues. That thing is a new one on me.
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