Yamaha No Shift? - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 4 (permalink) Old 02-18-2008, 09:39 AM Thread Starter
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Yamaha No Shift?

I searched but did not find anything specific. I have a new 2007 R6S that now has about 700 miles on it. Since the first day I got on it, it refused to shift up in some gears regardless if i was quick shifting at high RPMs or just slow smooth shifting at lower RPMs. I thought it would break itself in and start working but here is what happens.

Take off...shift...shift...try to shift but it feels like the shift lever is completely locked it will not budge up a bit. I am scared to just force it because I have had motocross bikes in the past round off the shifter gear and cause problems. When this does happens to shift I have to pull in the clutch and let it back out causing slight engine breaking and then pull it back in and it shifts perfectly like there was never a problem. Sometimes I can keep the clutch pulled in and shift down and then shift up twice.

So far it has happened in 2nd, 3rd and 4th... Maybe its just me this is my first bike?
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post #2 of 4 (permalink) Old 02-18-2008, 12:45 PM
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The linkage between the the pedal and the actual gearbox is probably loose. My bike did this about 2 weeks ago and I thought something was wrong so I started taking things off and realized that it had just gotten loosened up. I tightened it and now it shifts better than ever.

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post #3 of 4 (permalink) Old 02-19-2008, 10:53 AM
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Quote:
Originally Posted by mvp622 View Post
The linkage between the the pedal and the actual gearbox is probably loose. My bike did this about 2 weeks ago and I thought something was wrong so I started taking things off and realized that it had just gotten loosened up. I tightened it and now it shifts better than ever.
That would be my guess...on my 07' R6...no issues at all.

Having said this...just to change the oil on my bike you have to remove the gear shift lever and it states to be careful reinstalling it because this could be an issue. I changed my own oil and again...no issues.

Just make sure it's lined up correctly and torqued to factory specs.

07 red R1
07 blue R6
02 blown Z06
03 SRT-4
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post #4 of 4 (permalink) Old 02-22-2008, 10:07 PM
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Quote:
Originally Posted by FordForever View Post
When this does happens to shift I have to pull in the clutch
You mean you don't already have the clutch pulled in when you're trying to shift? You're doing it wrong.

You're basically trying to do a clutchless upshift at the wrong rpms and without using the proper shifter-loading technique. You're going to destroy that tranny.

Since you just started riding, stick with clutched upshifts for now, just like if you were driving a manual car.
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