glennpm
Another Old Biker Nut!
Hi,
I have a 1979 XS650F that has about 400 miles on it since the Cafe style rebuild. I started with a rough but low mileage bike that had about 7,000 miles on the odometer. I went completely through the motor and transmission. The transmission gear dogs and shift arms all looked good in my recollection. I swapped out the stock '79 main shaft 5th gear with one of MikesXS overdrive 5th gears. I didn't have any problem slipping the replacement 5th gear onto the shaft like others have been having in the other 5th gear thread.
I am having trouble dropping out of 5th to neutral. It occurs just cruising along and not under a load change of deceleration, acceleration or climbing a grade. All of the gear selections are positive going up or down. Neutral can be elusive. This is what I've done so far:
- Chain was adjusted a little tight. Slackening it off, now as far as I wish to go, lessened the drop outs.
- The shifter shaft is tight side to side. with no excessive slack
- I pulled the right side case. The selector springs are not broken and seem to have adequate tension.
- The star wheel adjustment was a little bit off so I centered it in all the gear selections per the manual. It was tough loosening up the adjuster lock nut with the clutch basket in place and discs pulled out. This adjustment made no improvement.
I'm very reluctant to split the cases and hope that there may be something else I've missed. I'm also thinking about going through the rear oil drain plug hole with my HF boroscope camera and see if when rotating the position of 5th when selected and the condition of the dogs on its mate, when not engaged. It seems like the hole would be in a fair place for this inspection.
Any other non-splitting checks I can do?
Thanks
I have a 1979 XS650F that has about 400 miles on it since the Cafe style rebuild. I started with a rough but low mileage bike that had about 7,000 miles on the odometer. I went completely through the motor and transmission. The transmission gear dogs and shift arms all looked good in my recollection. I swapped out the stock '79 main shaft 5th gear with one of MikesXS overdrive 5th gears. I didn't have any problem slipping the replacement 5th gear onto the shaft like others have been having in the other 5th gear thread.
I am having trouble dropping out of 5th to neutral. It occurs just cruising along and not under a load change of deceleration, acceleration or climbing a grade. All of the gear selections are positive going up or down. Neutral can be elusive. This is what I've done so far:
- Chain was adjusted a little tight. Slackening it off, now as far as I wish to go, lessened the drop outs.
- The shifter shaft is tight side to side. with no excessive slack
- I pulled the right side case. The selector springs are not broken and seem to have adequate tension.
- The star wheel adjustment was a little bit off so I centered it in all the gear selections per the manual. It was tough loosening up the adjuster lock nut with the clutch basket in place and discs pulled out. This adjustment made no improvement.
I'm very reluctant to split the cases and hope that there may be something else I've missed. I'm also thinking about going through the rear oil drain plug hole with my HF boroscope camera and see if when rotating the position of 5th when selected and the condition of the dogs on its mate, when not engaged. It seems like the hole would be in a fair place for this inspection.
Any other non-splitting checks I can do?
Thanks
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