Yamaha R1 Forum: YZF-R1 Forums banner

Neutral wheel spin

9.3K views 15 replies 12 participants last post by  SAB  
#1 ·
So I put my bike up on the stands and put some stabil in the tank. I decided to start it up and run it for a bit to make sure the stabil went through.

I have the bike in neutral, and I notice the rear tire slowly spinning, it doesn't appear to be speeding up but it is going a good pace. I stopped it with my shoe, but it still had some force behind it.

Is this normal, or is this a sign of something wearing? I can't remember if I've run it on the stand before, or always had it on the ground.

The only thing I modified that is clutch related is the rearsets and levers.

Another thing that might be related, is after a long run over the summer, I came to a semi emergency stop so i ended up full stop, clutch in, but in 6th gear. It would not downshif to save my life, so I got it going in 6th and as soon as I was rolling a bit, it would downshift. Again, normal?

Thanks for any help.
 
#3 ·
yes tire spin is normal, your in wisconsin and I'm guessing it's pretty cold out, and I'm also guessing the bike was cold. the bikes going to idle high for the first few minutes then it will drop a bit. while it is idling high the wheel will spin. it will also slightly spin when u rev in neutral.

as far as stopping in 6th, yea a bike can and will give you trouble trying to downshift without movement on the drivetrain.
 
#5 ·
Easiest way to get the bike down shifted is to just "pop" the clutch while tapping down over and over again, may need to get some revs in there. You're pretty much slipping the clutch and catching it before the bike wants to stall.
 
#6 ·
Could also be a bit of clutch stiction. Pretty normal (Given that you can stop it with your foot) especially if I has not been ridden in a while. Good to check adjustment too.
 
#9 ·
Probably has something to do with the oil temp. Because the R1 has a wet clutch, the rotating mass of the clutch should in theory spin the oil, which turn will move the wheel. Once the oil warms, the wheel should quit spinning or spin less. Just a guess thought.
 
#12 ·
Awesome and quick info!!!

I appreciate it, yeas it is cold here, I keep the garage at about 45°F so the bike was cold.

It's funny, such a small thing, but I was really worried something was messed up. The cold oil makes perfect sense.

Thanks.
 
#14 ·
Yep oil temp, close tolerances of parts, Been turning a wrench for the last 24 years and seen the same effect on most all drive trains when in neutral in just about every drivetrain whether it was a 4 wheel cage, outboard engine on a boat or a ship(depending if we were trailing shaft or stopped motionless of course then it was another reason the shaft turned when the reduction gear was not engaged unless it had a shaft brake). Totally normal as everyone has said.