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  # 1  
Old 11-05-11, 13:04
old Roman old Roman is offline
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Clonky gearbox

Hi to everybody.

Have 2008 ten with 10 k on the clock. Works fine, but lately I started to wonder whether it is normal that the gear switching is so clonky.

My son has a yammi WR250X with a butter smooth gearchange. Why then is the Ten so agricultural.

A made a check on the stand, with rear wheel raised from the ground and the engine off. What I have found is that when I select the 1st gear, I can not move the rear wheel even with the clutch lever fully squezzed. In higher gears I managed to turn rear wheel, but with the high drag from the clutch.

Also if I start the engine with the 1st gear selected and clutch lever squezzed, it shows slight intention to move forward.

Now I don't know if such behaviour applies to all teneres, or do I have some issue with the clutch. If it is normal, I can live with clonking, because it actually does not affect riding.

But if it is not all that normal, then I would be happy if someone can point out what may be the cause, and in which direction to search for rectifying this.

Thanks
  # 2  
Old 11-05-11, 13:13
mrfijjitt mrfijjitt is offline
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The gearchange on my bike is very rough and clunky when the drivechain is worn, especially 2nd to 3rd, but becomes much smoother when a new chain is fitted.
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  # 3  
Old 11-05-11, 13:13
uberthumper uberthumper is offline
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Bit too much slack in the clutch cable would be my first suspicion.
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  # 4  
Old 11-05-11, 13:37
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Kev Kev is offline
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Add a loose chain or worn rear sprocket rubbers to that list.
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  # 5  
Old 11-05-11, 14:00
Pleiades Pleiades is offline
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...or the engine oil is not the right grade - too higher viscosity will cause clutch drag and poor gear changes.
  # 6  
Old 11-05-11, 14:45
old Roman old Roman is offline
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Quote:
Originally Posted by Pleiades View Post
...or the engine oil is not the right grade - too higher viscosity will cause clutch drag and poor gear changes.
It came to my mind too. But the bike is regulary serviced at the Yamaha only.

To ask straight?

Are other teneres not exhibit such behaviour? I mean bang and shake when putting in 1st?!?
  # 7  
Old 11-05-11, 14:52
uberthumper uberthumper is offline
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Well yeah, they're not the smoothest of gearboxes. However your clutch *is* dragging, and that will be making it worse.
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  # 8  
Old 11-05-11, 21:58
tripletom tripletom is offline
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Also, when you first start the bike, with it in neutral, pull the clutch in and blip the throttle, then let it out, then back in again for first. Honestly first will slip in like Osama into one of his many recently found virgins.
  # 9  
Old 11-05-11, 23:17
old Roman old Roman is offline
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Quote:
Originally Posted by tripletom View Post
Also, when you first start the bike, with it in neutral, pull the clutch in and blip the throttle, then let it out, then back in again for first. Honestly first will slip in like Osama into one of his many recently found virgins.
This may be the solution. I made some experiments on the stand and realised, that the clutch sticks only at the beginning. This causes bang when 1 st gear is selected. After initial use it breaks loose and works properly.

I'll try your suggestion tomorrow.


With that many virgins, Osama may be quite busy right now.
  # 10  
Old 11-05-11, 23:36
Pleiades Pleiades is offline
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If this is the case, you might also find a few standing starts using a big handful of throttle, slipping the clutch may clear off any of the stickiness in the clutch. You could of course also try some clutch wheelies too!!
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