front Sprocket installation - Yamaha R1 Forum: YZF-R1 Forums
09-14 R1 Mechanical Help Mechanical and Critical Issues for the 09-14 R1

 
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post #1 of 15 (permalink) Old 11-29-2012, 03:12 PM Thread Starter
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front Sprocket installation

Hi Guys,

How easy is it to install a front sprocket to '12. I'm thinking of order the 16T from OEM 2003 model.

links to guide or instructions would be great.
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post #2 of 15 (permalink) Old 11-29-2012, 03:43 PM
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if it's never been off, its got an unreal amount of locktite on it.

Bend tabs out (2 sides, screwdriver will bend them)....then use an impact wrench to remove the nut...Don't use an impact to put it back on though

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post #3 of 15 (permalink) Old 11-29-2012, 03:48 PM Thread Starter
Just made this great wheelie.. did you see it?!
 
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so not a 10min job, need heavy duty air powered wrench?
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post #4 of 15 (permalink) Old 11-29-2012, 03:52 PM
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Quote:
Originally Posted by Sydster View Post
so not a 10min job, need heavy duty air powered wrench?
10 min job if you have an air wrench...if you dont' you are going to need to rig up something to keep the sprocket from spinning...even in gear it will turn under the force it will take to take the nut off.

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post #5 of 15 (permalink) Old 11-29-2012, 03:52 PM
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Quote:
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so not a 10min job, need heavy duty air powered wrench?
That's what I used and it came off quick. I had trouble with it using hand tools and I've heard others have too.


Quote:
Originally Posted by z064life View Post
10 min job if you have an air wrench...if you dont' you are going to need to rig up something to keep the sprocket from spinning...even in gear it will turn under the force it will take to take the nut off.
I used a piece of rebar wrapped in a towel through the spokes to hold the rear wheel in place (pretty ghetto) but still couldn't bust the thing loose with my longest breaker bar. I finally hauled out the compressor and air tools and it came off instantly.

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Last edited by MeanOne; 11-29-2012 at 03:59 PM.
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post #6 of 15 (permalink) Old 11-29-2012, 03:56 PM Thread Starter
Just made this great wheelie.. did you see it?!
 
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Dang! thanks for your replay mate!
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post #7 of 15 (permalink) Old 11-29-2012, 03:56 PM
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Dang! thanks for your replay mate!
Give you a good excuse to buy some tools...I can't tell you how much my collection has grown since buying a bike

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post #8 of 15 (permalink) Old 11-29-2012, 05:03 PM
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My '12 has a notch in the shaft that the outer edge of nut gets peened into, has no lock plate with tabs. Nut was easy to remove with 1/2 inch breaker bar, bike in gear with foot on rear brake. Torque nut to 66 ft.lbs.

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post #9 of 15 (permalink) Old 11-29-2012, 05:19 PM
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air wrench is for wimps...





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post #10 of 15 (permalink) Old 11-29-2012, 05:36 PM
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air wrench is for wimps...


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post #11 of 15 (permalink) Old 11-29-2012, 05:43 PM
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Quote:
Originally Posted by quick kurt View Post
My '12 has a notch in the shaft that the outer edge of nut gets peened into, has no lock plate with tabs. Nut was easy to remove with 1/2 inch breaker bar, bike in gear with foot on rear brake. Torque nut to 66 ft.lbs.
that's what I meant by using the screwdriver...if I remember anyway

rear brake on is a good idea...honestly didn't think of that

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post #12 of 15 (permalink) Old 11-29-2012, 06:52 PM
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air impact gun..not in gear...rear brake worked for me on my first bike. was soaked in wd for a few days.

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post #13 of 15 (permalink) Old 11-29-2012, 07:43 PM
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air impact gun..not in gear...rear brake worked for me on my first bike. was soaked in wd for a few days.
Very important part in bold. Don't have it in gear or you risk tranny damage. Best is to use the rear brake as other said. It's a pretty easy job overall.
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post #14 of 15 (permalink) Old 11-30-2012, 02:41 AM Thread Starter
Just made this great wheelie.. did you see it?!
 
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another way would be to use a long blacker bar, jackup the real wheel, place the socket on the nut, the handle of the bar against the ground, start the bike, put in gear and give it a bit of gas... can you see where im going with this.

This is how we remove a crank pully from a car when there is no air tools.
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post #15 of 15 (permalink) Old 11-30-2012, 03:20 AM
Just made this great wheelie.. did you see it?!
 
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Very important part in bold. Don't have it in gear or you risk tranny damage. Best is to use the rear brake as other said. It's a pretty easy job overall.
I never knew having it in gear could cause tranny problems... Yikes!

Good to know!!:

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