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Doug, Thanks Will try tonight .
It could be the splines are stripped from the driveshaft to the final drive or possibly your wheel bearings going out - have you put bike on center stand and spun rear wheel and moved it from side to side? You may need a couple boards under center stand to get rear wheel off the ground.
Let us know what you find out.
I'll check it out tonight .Depending on what kind of vibration you are experiencing, you should look at the gusset on the rear subframe. The one under the seat with 2 bolts for the fender where the back of the tool tray would rest. Typically, the weld opposite the chrome handle will crack. Most of these welds that I have seen are what is known in the trade as "under-cut" and are weak. All dual shock bikes except /5 are susceptible.
I took a cloose look at the rear wheel first, and all looks tight.. could it be in the spokes? Vibration is worst 1st - 3 rd gear up to approx 65mph . mirrors shakes , seat shakes ect . It seems to follow RPM s . I'll be into it more this week end . freezin in NY and whats better than working on your bike. Thanks and I'll keep updating DougI think it would be helpful if you could describe the vibration in a bit more detail. Does it happen when you first start out, all all speeds? Maybe it appears at only one speed or is worse at other speeds. Have you had any rear wheel service lately? Is there any slop in the rear wheel bearings...if you grab the tire at the 9am-3pm (or thereabouts) positions and try and rock the wheel, is it solid or does it walk a bit on the axle? Before tearing it apart, you should investigate these kinds of things.
I think it would be helpful if you could describe the vibration in a bit more detail. Does it happen when you first start out, all all speeds? Maybe it appears at only one speed or is worse at other speeds. Have you had any rear wheel service lately? Is there any slop in the rear wheel bearings...if you grab the tire at the 9am-3pm (or thereabouts) positions and try and rock the wheel, is it solid or does it walk a bit on the axle? Before tearing it apart, you should investigate these kinds of things.
Morning. removed the 4 final Drive bolts and found that the large nut/washer on the final drive was almost off. Finall drive is shot ! The bike has 45000 orig miles . Bummer! Rebuild/Buy new? any thoughts ? Thanks Doug
Morning. removed the 4 final Drive bolts and found that the large nut/washer on the final drive was almost off. Finall drive is shot ! The bike has 45000 orig miles . Bummer! Rebuild/Buy new? any thoughts ? Thanks Doug
Yes sir, Thats the bad boy..Nut folded the treads on the shaft , and the shaft wiggles . ShotSounds like you are talking about this guy....
View attachment 37345
If that nut were loose, yes your bearings are probably toast... but it may be worth playing with it by tightening and turning by hand etc.... Worst case, you can find a used one pretty cheap. Check the flea market here, and try the IBMWR fleamarket... there is usally a lot of stuff on there, with some good folks. I would use eBay as a last resort for something like this, though there are a couple of good bike-breakers who know their BMS stuff...you can try to contact them to see if they have anything that isn't posted.
Sounds like you are talking about this guy....
View attachment 37345
If that nut were loose, yes your bearings are probably toast... but it may be worth playing with it by tightening and turning by hand etc.... Worst case, you can find a used one pretty cheap. Check the flea market here, and try the IBMWR fleamarket... there is usally a lot of stuff on there, with some good folks. I would use eBay as a last resort for something like this, though there are a couple of good bike-breakers who know their BMS stuff...you can try to contact them to see if they have anything that isn't posted.