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belt riding outer flange front sprocket
- Thread starter quasi
- Start date
Snowbelt Spyder
Well-known member
Nature of the beast
Well Quasi, you could align the belt to be right up against the rear flange, and it would STILL ride against the front flange. Been there. Yours, like mine, has been like that since it came out of the crate, which I think applies to most 998 RTs. You're just noticing it. In a perfect world, it would be great if we could get the belt to ride between the two flanges, but it isn't going to happen without moving the motor, and besides, the engineers didn't have a concern with front flange clearance, anyway. Otherwise, there would be a spec for that like there is for the triple.
The belt is so long that the side loads on it from that front flange appear to be insignificant. And you probably have no indication of excessive wear on the belt edge, either. Obviously it's your machine and you can try to re-engineer things under there if you want. But I stopped worrying about it 30,000 miles ago, because I'm NOT going to try to adjust engine mounting, and it hasn't caused a single operating issue. Vibration is a bigger concern to me and now that Doc has the new roller for our ribbed belts, I'm going to put that on and "forget about it".
Well Quasi, you could align the belt to be right up against the rear flange, and it would STILL ride against the front flange. Been there. Yours, like mine, has been like that since it came out of the crate, which I think applies to most 998 RTs. You're just noticing it. In a perfect world, it would be great if we could get the belt to ride between the two flanges, but it isn't going to happen without moving the motor, and besides, the engineers didn't have a concern with front flange clearance, anyway. Otherwise, there would be a spec for that like there is for the triple.
The belt is so long that the side loads on it from that front flange appear to be insignificant. And you probably have no indication of excessive wear on the belt edge, either. Obviously it's your machine and you can try to re-engineer things under there if you want. But I stopped worrying about it 30,000 miles ago, because I'm NOT going to try to adjust engine mounting, and it hasn't caused a single operating issue. Vibration is a bigger concern to me and now that Doc has the new roller for our ribbed belts, I'm going to put that on and "forget about it".
Last edited:
Chupaca
New member
Interesting....
:agree: it is a thing and you need only concentrate on the rear..the interesting thing is up to the 2014 the front sprocket had a counter weight or flywheel attached to it on all models. In 2014 you could not get the flywheel for the RT and from then on as well as for the F3's. The RS, RSS and ST all continued having the flywheel. Perhaps because being a twin...:dontknow:
:agree: it is a thing and you need only concentrate on the rear..the interesting thing is up to the 2014 the front sprocket had a counter weight or flywheel attached to it on all models. In 2014 you could not get the flywheel for the RT and from then on as well as for the F3's. The RS, RSS and ST all continued having the flywheel. Perhaps because being a twin...:dontknow:
Snowbelt Spyder
Well-known member
quasi
New member
thanks for the info. I tend to grease the belt about once a month. I have about 1/2 mile of dirt/gravel road to get to the pavement, so maybe I should grease the belt more often. we'll see how it goes. tks
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