Is it as simple as removing the #36 circlip shown in the fiche above ?So, to the point: How do I remove the old gear coupling from the drive shaft ?
Is it as simple as removing the #36 circlip shown in the fiche above ?So, to the point: How do I remove the old gear coupling from the drive shaft ?
No, it should just pull out. It is a splined interface and had you not broken the input pinion, it would've separated. Hit it with some WD-40, put it in a vise and give it a tug. If that doesn't work, then perhaps you found the root of your problem. If that joint were seized, that could've caused a misalignment of sorts between the driveshaft and the input pinion, and flexed the pinion to the point where it fatigued and broke. Take some pictures of the driveshaft spline when you get it apart, you'll see it's designed to be able to pivot a bit inside of the female spline.Is it as simple as removing the #36 circlip shown in the fiche above ?So, to the point: How do I remove the old gear coupling from the drive shaft ?
... nope ... I pulled the pumpkin off myself .. and didn't notice that it was broken ... driveshaft just simply slid right out of pumpkin nice and easy with gear coupler attached ...OP sent his bike in to a dealership be repaired for a leaky final drive forward seal. Shop monkeys broke the pinion shaft off trying to (incorrectly) disassemble it.
The pinion to gear coupling was already broken when i gave it to the dealership (but i didn't realize it yet)How the hell would they have known the ring to pinion gear interface was screwed up if they never disassembled it?
And how would they disassemble it without removing the drive shaft from the pumpkin.
Wow, broken pinion shaft. That's a first here I think. How did it fail? Did you put those 44,000 miles on 1/4 or 1/8th of a mile at a time? Dump the clutch repeatedly at 7k from stoplight to stoplight?
No drag racing, no clutch dumping ... just Hard riding ... lane splitting every day or so - "redline" to hard braking, repeat, repeat, repeat for 30 minutes, over about 25,000 miles, occasional 500 mile rides with speeds typically in the 80-130 mph range (on a closed course with a professional rider), and a couple track days too.Take some pictures of the driveshaft spline when you get it apart, you'll see it's designed to be able to pivot a bit inside of the female spline.
From the poorly lit shitty picture you took of the driveshaft splines they looks fine. Did you have any trouble separating the splines? Do you see any corrosion or pitting on the driveshaft splines? Any broken ones? If you have a set of V blocks and a dial indicator, you can check your driveshaft for straightness. Hell, even without the dial indicator you'd be able to see if it were bent by rotating it on a set of V blocks. Also, run your fingernail across the area between the shiny, worn contact patch of the spline and where it looks like it's not shiny. A fingernail is usually good enough for less than 0.001" wear indication, you'll feel it 'catch' running across the two different surfaces.broken pinion shaft:https://i1152.photobucket.com/albums/p493/katole/bike%20parts/20140826_074725.jpg[/ IMG]
Damage to ring gear:
https://i1152.photobucket.com/albums/p493/katole/bike%20parts/20140826_074524.jpg[/ IMG]
Wear on driveshaft:
https://i1152.photobucket.com/albums/p493/katole/bike%20parts/20140826_074447-1.jpg[/ IMG]
Seems like there is a little play in the driveshaft to gear coupler (both on the old and new couplers) - is there supposed to be a little play ?
- taking into consideration the broken pinion shaft, should I just go ahead and replace the driveshaft ?
Anybody got a spare "mint" gen 1 driveshaft ?
and what's wrong with my image posts ?
(without the space in "[/ IMG]", it kept telling me that I
"can't post an image with that extension in this community" )
YupSeems like there is a little play in the driveshaft to gear coupler (both on the old and new couplers) - is there supposed to be a little play ?
I think what most are trying to tell you is this is completely abnormal and has not happened in hundreds of riders that ride similarly "hard". Shit happens, a good data point for sure. But the spirited riding you refer to sounds 'bout right and definitely not a reason for problems. There are m/c with 2-6x the mileage, driving just as hard. This post isn't about anecdotal evidence and more to say this is unheard of with a low miles, hard run FJR. Hmmmm.No drag racing, no clutch dumping ... just Hard riding ... lane splitting every day or so - "redline" to hard braking, repeat, repeat, repeat for 30 minutes, over about 25,000 miles, occasional 500 mile rides with speeds typically in the 80-130 mph range (on a closed course with a professional rider), and a couple track days too.
The FJR is a great bike, and I can't hold her at fault for wearing out a bit after 44,000 miles with the way I ride.
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