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2008 Yamaha 450 grizzly won't change gears

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  #11  
Old 02-25-2016, 09:40 AM
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Originally Posted by Yammy
Anyone have any input my bike won't change gears I disconnected the shifter linkage and a can turn gear and shows all the light lighting low high neutral reverse park but stays in forward or wants to try and move forward in every gear. What can I do next any idea?


Then maybe you have a clutch problem....primary or secondary sheaves not releasing and keeping the belt tight. If not that, then I would suspect a tranny problem of some sort.....
 
  #12  
Old 02-25-2016, 09:44 AM
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well I will go through that then. Do you think the actual changing of gears could be electrically? I know it shows the lights on the dash change from gear to gear but the transmission itself is just doin nothing.
 
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Old 02-25-2016, 10:33 AM
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Originally Posted by Yammy
well I will go through that then. Do you think the actual changing of gears could be electrically? I know it shows the lights on the dash change from gear to gear but the transmission itself is just doin nothing.
No, the gear changing is via mechanical linkage...shifter....linkage...trans. However, on some Yammies, as was mentioned by others, the foot brake must be applied to achieve reverse. I do not know if that is a mechanical or electrical function because I have never experienced a problem with it. See in red....when you are doing this...the shift linkage is connected?
 
  #14  
Old 02-25-2016, 10:48 AM
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no I have the linkage disconnected as I thought that was the original problem been turning with pliers. wish I could figure out how to add pics


https://atvconnection.com/forums/att...1&d=1456418548
 
Attached Thumbnails 2008 Yamaha 450 grizzly won't change gears-071.jpg   2008 Yamaha 450 grizzly won't change gears-069.jpg  
  #15  
Old 02-25-2016, 10:50 AM
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oh it worked
 
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Old 02-25-2016, 11:17 AM
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Originally Posted by Yammy
oh it worked
So you re-assembled the linkage and it's now working? Keep in mind that if the engine is idling too high, shifting can be very difficult and....remember when going fron N to R, I'm fairly sure you must press the foot brake ( as others previously mentioned, floorboard brake ).
 
  #17  
Old 02-25-2016, 11:46 AM
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no haha I was just referring to the pictures worked lol. it still doesn't shift gears.
 
  #18  
Old 02-25-2016, 12:32 PM
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Originally Posted by Yammy
no haha I was just referring to the pictures worked lol. it still doesn't shift gears.
oops! At this point you might have a look at the clutches but...even if the sheaves are too tight ( keeping the belt tight ), with engine off, I would think you could still shift btwn the gears by rocking the ATV.
 
  #19  
Old 02-25-2016, 12:54 PM
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I even opened secondary all is good in there. So how do you get into the clutches? do you have to pull motor?
 
  #20  
Old 02-25-2016, 01:48 PM
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I'm assuming this is a belt drive. The "dry" clutches are under the large black plastic cover on the side of the engine....I'm guessing there are about 8 bolts that holds the cover on. Once the cover is removed, you will see the drive and driven clutch as well as the drive belt. But before you go to that trouble, have you "googled" the issue you are having and read everything you can about it? I say this because I'm "guessing" you may have a clutch issue. I have never seen what you have been describing....tho I have worked on ATV's for many years.
 


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