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Old 07-25-2008, 11:21 AM   #1
gsxrjai
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Removing a Stator

Trying to remove a Stator from an 03 R1...
Does anyone have any tips?

OEM Yamaha Tools -5-30
GENERATOR ENG
NOTE:
NOTE:
WARNING
CAUTION:
REMOVING THE GENERATOR
1. Remove:
generator rotor cover 1
Loosen each bolt 1/4 of a turn at a time, in
stages and in a crisscross pattern.
After all of the bolts are fully loosened, remove
them.
2. Remove:
generator rotor bolt 1
washer
While holding the generator rotor 2 with the
universal magneto & rotor holder 3 , loosen the
generator rotor bolt.
Universal magneto & rotor holder
YU-01235
3. Remove:
generator rotor 1
(with the alternator roter puller 2 and rotor
holding tool 3 )
Alternator roter puller
YM-01080-A
INSTALLING THE GENERATOR
1. Apply:
sealant
(onto the stator coil assembly lead grommet)
Yamaha bond No. 1215
ACC-11001-05-01
2. Install:
generator rotor
washer
generator rotor bolt
Always use a new generator rotor bolt.
Clean the tapered portion of the crankshaft
and the generator rotor hub with lacquer
thinner.
Lubricate the generator rotor bolt threads
with engine oil.
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Old 07-25-2008, 12:05 PM   #2
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when-ever someone wants to chime in...
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Old 07-25-2008, 12:08 PM   #3
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Its pretty easy. Should take you more than 30-40 mins tops. Just unbult the case cover and unbolt the stator and swap. Be sure you have the tools...I think the stator requires star bits to remove. Have a oil pan underneath and ready cause you will lose a good amount of oil and make sure you have more oil to pour in when your done.
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Old 07-25-2008, 12:08 PM   #4
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Use a new gasket and dont use the sealant....its alot cleaner.
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Old 07-25-2008, 12:08 PM   #5
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It's been several months since I did it but I remember it was really easy. Hit me up if you need any help.
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Old 07-25-2008, 12:11 PM   #6
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Quote:
Originally Posted by Pyrofallout View Post
Its pretty easy. Should take you more than 30-40 mins tops. Just unbult the case cover and unbolt the stator and swap. Be sure you have the tools...I think the stator requires star bits to remove. Have a oil pan underneath and ready cause you will lose a good amount of oil and make sure you have more oil to pour in when your done.

Real easy.


just dont get your finger caught behind it
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Old 07-25-2008, 12:15 PM   #7
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Quote:
Originally Posted by Pyrofallout View Post
It's been several months since I did it but I remember it was really easy. Hit me up if you need any help.
.

Thanks... Im be giving you a call this weekend.lol Ive tried unbolting and pulling nothing yet, will try again.
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Old 07-25-2008, 12:22 PM   #8
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Quote:
Originally Posted by gsxrjai View Post
.

Thanks... Im be giving you a call this weekend.lol Ive tried unbolting and pulling nothing yet, will try again.
well you gotta take the cover off, usually theres sealant or a gasket.

just kinda pry it off


Then after that there should be a few bolts holding the stator itself on, take those off


you might need to pry the stator off, very gentle, becareful its a strong magnet. then replace
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Old 07-25-2008, 02:35 PM   #9
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To get to the Stator, you need to remove the Rotor assembly on the R1.
This is quiet different to removing the stator on most GSXR's.

After removing the cover,
undo the main rotor retaining bolt (on the end of the crank), 14 or 15mm from memory.
If you have the special tool now's the time to use it.
If not, look at the centre hole in the rotor and you'll see it's threaded.
Now this is how I've done it (several times):
Find a large headed bolt with the correct thread that will screw in through the rotor and against the end of the crank.
Use an airgun on your bolt to shock the rotor off.
Do this by doing up, and undoing, doing up and undoing (keeps the threads clean) until the shock jars the rotor off.
CAUTION: DON'T use max torque on your gun or you'll damage the threads.
Use a fairly gentle setting and after 5-10 attempts it should just pop off.
If not turn up the torgue slightly.
Once removed the stator is easily undone by removing 3 x retainer bolts.

If you're unsure and don't have a good quality adjustable airgun then my advice would be to get someone else to do it.
Hope this helps
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Old 07-31-2008, 11:58 AM   #10
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Had a bad few days and wasnt able to work on the bike, I will be trying all these methods this weekend. Thanks for the advice and everyone ride safe.
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Old 07-31-2008, 12:13 PM   #11
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Quote:
Originally Posted by gsxrjai View Post
.

Thanks... Im be giving you a call this weekend.lol Ive tried unbolting and pulling nothing yet, will try again.
Thats because there is a magnet on the inside it is super easy to change like others have said... Just pull a lil harder it will come off
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Old 07-31-2008, 02:47 PM   #12
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Wear gloves when putting the case back on, it pinches really hard when that case snaps back on. It will leave you with a nasty blood blister.
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Old 08-01-2008, 02:58 PM   #13
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Quote:
Originally Posted by gsxrjai View Post
Had a bad few days and wasnt able to work on the bike, I will be trying all these methods this weekend. Thanks for the advice and everyone ride safe.
no worries,
the genny cover should come off with a light tap using a rubber mallet.
you just need to break the seal.
It won't catch your fingers or any of that other stuff these guys are talking about because they are referring to a typical Suzuki assembly and not a Yamaha R1.
On the R1 the stator is bolted to the crankcases, the crank runs up through the middle of it and the rotor then bolts to the end of the crank.
On most GSXR's the stator is mounted to the generator cover, the rotor to the crank and as you offer them up you get the magnetic pull which can give you a nasty pinch if you're not careful.
Goodluck.
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