2007 Yamaha R1 stuck generator stator rotor removal

This is the method I used to pull the stuck rotor from the engine case. Hope it helps!

[@hugosmooth7726]

Thank you for posting this! I was in the same situation with my 2006 FZ1. The previous owner replaced the original magnet-recalled rotor with a new rotor. But for some reason the rotor shaft had to be pressed into the rear bearing, I think. This made removing it 10x harder than yours. So for the next person struggling with this, consider the following. Make a loop in the strap and twist the strap like a tourniquet to keep it on the rotor longer, and then add a handle/bar where you can slam the strap outward with a running start. This is better than just pulling due to the sharp jerking action it supplies. If this does not work, make a similar rig to the strap but with a steel cable in a 3 ft diameter loop. Then after attaching, slam/hammer some very heavy steel bar away from the center towards the cable. A bonus is that the steel cable stay on much longer and lasts much longer than the strap. Eventually this worked and freed the rotor.

[@90goarmy]

hugosmooth I just bought a FZ1 with the exact same issue

[@Cj-xl3jv]

Bless you, I fucked up the install for my new rotor and put the collar on backwards. Anyways the rotor was welded to the rear bearing so I’m going to try these methods and see if they work

[@Cj-xl3jv]

Update: WORKED LIKE A CHARM, 3 to 4 sharp tugs pulled it out. Make sure to put something underneath the bike to catch it.

[@snorlax8581]

@@Cj-xl3jvdid you replace the bearings too?

[@Cj-xl3jv]

@@snorlax8581 Yes, internal and external

[@jacobhendrickson8935]

I like your idea here, using your thumb to hold the rotor up while tugging was very smart of ya. Trust me most would not have thought of that.

[@ivanpodres6271]

Did you try putting the bike in 2nd gear (not running obviously) and try to push the back wheel back and forth as you try to remove the roter? Sprocket tooth to tooth seems pretty tight when I replaced mine.

[@jacobhendrickson8935]

Did you get this going right? My thoughts are someone had this thing together missing a spacer or something of that nature. My rotor comes right out with the cover if your not careful.

[@al3xRuss]

I'm hoping you might have some insight on it. How do you get the stator plugs out of the air box under the air filter? Really hoping you might know, because I haven't been able to find any info on this anywhere.

[@topgsolarcleaning]

whats up alex, so i just did mine today and i was stuck on the same issue but i figured it out. you have to remove the throttle body plastic casing and it will come out

[@jacobhendrickson8935]

Oh and if you do not put the updated rotor in there your going to end up with issues when those exposed magnets go everywhere. The new updated part has those magnets covered due to so many coming apart.

[@freedom240188]

I just gave mine a wiggle up down left right up down left right hahha and it needed a light tap to go in also. Just very tight fit due to heat expansion ect.

[@luismiranda6906]

Looking to buy a 2008 Yamaha R1 flywheel and magneto. Let me know

[@TheDonInLondon]

What was the cause of this in the end??

[@tkarros]

The Don in London the one way clutch on the starter was failing and this is how to get to it. When I would press the button to start it and the starter would spin but not turn over the engine.

[@bullinapeamurica5940]

Yamaha should replace these AND clean the chunks of magnets out of the oil pan for free(if it exploded like mine did) no matter the mileage or age of the bike.

[@salhs94]

Hello so I am having similar problem to yours the starter well it’s been by the motorcycle wouldn’t the engine one and spin I have changed the starter motor and it’s the same thing with the new one is that was you problem as well .? 😭

[@salhs94]

Mine is 2005 r1

[@tkarros]

A bad one-way starter clutch on the back of this rotor was the problem for me. The part number for a 2005 is 5VY-15570-00-00

[@salhs94]

Thank you for you rsponse i was able to get to it today and i wound the tooth for the big gear in the engine not the stator wheel to crank the engine the tooth is gone they are destroyed any idea is that. Something simple to repalce

[@iankalashnikov6659]

Ponle subtítulos.....amigo

[@jacobhendrickson8935]

Why change the whole case?? That bearing can be pulled out of there

[@tkarros]

Oh yes I know. I laid it down and cracked the upper and lower and had to swap everything into this donor case. What I meant was I had to pull the bearing from the original damaged case and put it in this one.

[@guillermoveran]

Timothy Karros hello, that just happened to me, I have that stack, tomorrow I'll try what you did, do you know what cause it? Or what did we do wrong?

[@tkarros]

It is a problem with the one-way starter clutch. Over time, the small spring around it will loosen up and cause it to spin and not lock up to turn the motor over. You can try to tighten up the spring or just replace the whole starter clutch assembly. When you have it off the starter clutch gear should spin free counterclockwise and lock and turn the entire rotor when going clockwise. Also make sure you have the washers in the correct place for proper spacing.

[@tooksjohnson9006]

Timothy Karros no special tool

[@HorsepowerHouse]

Such a dumb design by Yamaha not to just have a "normal" flywheel like pretty much ALL other motorcycles. Talk about over-engineering of a simple item on a motorcycle engine.

[@tkarros]

Horsepower House I actually had to do this again last week to change another failing one-way clutch. I agree it is a very dumb design and not easy to work on... starter motor gear turns another gear which turns starter clutch that turns rotor that finally cranks engine! Seems a bit overkill.