final drive, (drive shaft)

[Checkswrecks]

BTW guys, for kicks, I decided to go up on the V-Max, FJR, and S10 fiche sites to see how much part commonality there is between the final drives. I didn't cross-ref every part, but except for a few minor hardware items (like the axle nut), there is essentially none. All the major hardware items - shaft, ring gear, case, bearings, thrust washers, etc. - are different on all three bikes. And while the designs are similar, they are completely different in the details, especially the S10 which is quite different from the FJR and V-Max.

This whole "share the same final drive" thing appears to be urban legend to me.

- Mark

Mark, you may also remember when we were in FJR-land several years back, that somebody used Max parts to try to change the final drive ratio. He got it done, but it took a lot and was not a simple bolt-off bolt-on.

Having written that, Yamaha has demonstrated on both of those other bikes that the shafts and rear drives are never an issue for them. Maybe from having the same designers who did the Ford SHO Tauruses? Plus, both of those bikes are making a lot more power than the S10. The S10 rear drive is something I am not even vaguely skeered of.

And I am continuing to use Mobil1 in it.

 

[markjenn]

Having written that, Yamaha has demonstrated on both of those other bikes that the shafts and rear drives are never an issue for them. Maybe from having the same designers who did the Ford SHO Tauruses? Plus, both of those bikes are making a lot more power than the S10. The S10 rear drive is something I am not even vaguely skeered of.

The fact the S10 uses a different final drive from the FJR or V-Max doesn't make me think in the slightest that is likely weak or under-designed. Just wanted to set the record straight that it isn't the same, at least not as I read the fiche.

As you say, Yamaha has a reputation for robustness here, and designs with an axle (as opposed to the BMW single-sided system) are generally though to be stronger to begin with. I'm not worried about the S10's final drive.

- Mark

 

[markjenn]

Was anything the same? (I don't mean screws and nuts)

Only a few washers and fasteners. Yamaha parses the assemblies a little differently on the bikes, so its hard to be totally definitive. But even disregarding the part nos and just looking at the exploded diagrams, you see major differences in details - the designs are similar in overall design but differ in lots of details.

- Mark