Grinding all gears while letting clutch out

[dana523]

I have a 88 Venture royale got this bike used and having some problems with the clutch we think. Pull the clutch in its fine let it out in any gear but neutral and you get a grinding noise and trys to move but don't (almost like a rocking movement). Rear wheel does turn while in gear. Checked the clutch disks all seems fine, other than cracking the case and checking the second gear don't know what else to do. Anyone have any ideas?

[Marcarl]

May have broke the u-joint after the middle gear, maybe stripped out a spline on the drive shaft, or done some damage in the pumpkin. I would guess the u- joint for starters, but others will soon find more stuff to hand to you.

[dingy]

Can you somewhat pin point location of noise?

 

Sounds a little like the pinion shaft in final drive may have broke.

 

Picture is looking into the final drive unit, which has the collar removed. Shaft in center has been known to break. Collar in 2nd picture.

Gary

[XV1100SE]

Gary... do you have pictures of every part on the Ventures? Just lucky you had a picture already? Or have spare parts around you can take pictures of and post as questions come up?

[dana523]

Sounds like around the clutch basket or behind it.

[dingy]

Gary... do you have pictures of every part on the Ventures? Just lucky you had a picture already? Or have spare parts around you can take pictures of and post as questions come up?

 

Both !!

 

These pictures are from before in this case.

 

Sometimes I go out and get a spare part and photo it. I do what I can to help.

 

My Venture folder with pictures has 45,000 files @ 29 gig. 2,057 folders.

 

Problem comes up when I know I have a picture of something, but what folder did I put it in. I don't rename 99% of pictures to a searchable name. Call me lazy.

 

 

Gary

[dacheedah]

nice pictures

[Dano]

What I would do to isolate the grinding noise:

 

Put it on center stand, remove the middle gear cover (back one on left side, put the bottom screw back in to keep any oil in there from draining out, won't be much), all you will see in there is the "captive" tranny output shaft bearing and end of that shaft.

 

Put in 1st gear and see if you can rotate the back tire by hand, watching the tranny output shaft end (side cover removed) turn or not. If it turns, problem is in the tranny and/or clutch side gears. If it doesn't, and the tire turns, you can listen for the noise from the side cover back to the rear gear. In here, you've got middle "pinion gear" gear setup (had to replace the "drive knuckle" on the tranny shaft that feeds power to the middle gear for a guy once), U-joint on the "output shaft", drive shaft, then input into the rear gear.

 

If it doesn't turn in 1st, try shifting into 2nd gear and see if the wheel can turn. If it does and so does the tranny shaft, THEN the possibility of a "bad" 2nd gear connection comes into play. But you've got an '88, so the 2nd gear issue isn't involved here.

 

Otherwise, we'd have to look at other possibilities!

 

Make sure you have looked at the parts pictures available thru Yamaha at most parts places to familiarize yourself with the drive train.

[Dano]

Just a pic of the middle gear "knuckle" I was talking about. This is looking into the left rear of the motor after removing the rear wheel, driveshaft, tube and rear u-joint cover and back half of the middle gear pinion gear.

[dana523]

What I would do to isolate the grinding noise:

 

Put it on center stand, remove the middle gear cover (back one on left side, put the bottom screw back in to keep any oil in there from draining out, won't be much), all you will see in there is the "captive" tranny output shaft bearing and end of that shaft.

 

Put in 1st gear and see if you can rotate the back tire by hand, watching the tranny output shaft end (side cover removed) turn or not. If it turns, problem is in the tranny and/or clutch side gears. If it doesn't, and the tire turns, you can listen for the noise from the side cover back to the rear gear. In here, you've got middle "pinion gear" gear setup (had to replace the "drive knuckle" on the tranny shaft that feeds power to the middle gear for a guy once), U-joint on the "output shaft", drive shaft, then input into the rear gear.

 

If it doesn't turn in 1st, try shifting into 2nd gear and see if the wheel can turn. If it does and so does the tranny shaft, THEN the possibility of a "bad" 2nd gear connection comes into play. But you've got an '88, so the 2nd gear issue isn't involved here.

 

Otherwise, we'd have to look at other possibilities!

 

Make sure you have looked at the parts pictures available thru Yamaha at most parts places to familiarize yourself with the drive train.

 

Thanks for this and I did find out and this is good what you wanted me to try. The nut on the clutch basket we cannot remove dont know what the size is anyone know?