Hi, I was going to change the left crank seal on my 1971 Yamaha AT1, how ever I have no idea how to remove the dynamo (picture attached), the guide I was using didn’t show anything about maybe because the CT1 doesn’t have one? anyway I would appreciate any help as I couldn’t find any guide on how to remove this.thanks 

Service manuals are in Tech Library here.

There are many posts here on this topic... here's one:  yamaha-enduros.com/index.php/forums/1968...e-at-1-models#166324

ebay seller of special tool seems to be out of stock right now. Bolt works too

Greetings from Tennessee.  

Yeah I seen that post but I don’t understand how you take it off with a bolt, I have the service manuals but I didn’t check them, because their on my computer and I didn’t have time, but I’ll have a look now again. 

Thanks

Hi, greetings from Scotland, the country where we overcharge new young riders for insurance because when we get a license we are automatically considered as criminals. 

This should be the one. 10x1.25 extended nose & pushes from the bottom of the hole. I've had one for 50 years but easier to link this than to go & find mine for a pic haha. My AT1 has magneto so not related to this puller but i have the puller because it fits lots of generator models twins too from when i worked in the shop. Cheers from NZ.

www.cmsnl.com/products/pullerarmature-iso_9089001111/

Just another thought. If you had a long enough 10x1.25 bolt that reached the end of the crank & relieved a few threads so it wouldn't flatten over & not want to come back out. Then bolt would push on the crank end not go down in but theoretically the same result so should pop off. Can see the end of the crank not far in when advancer is removed.

www.dropbox.com/scl/fi/59gd0gsclwgo1ppep...m2v9oc6s7ut37ya&dl=0
 This does work all you have to do is tighten the bolt and it pops off got mine on EBay 

381789688313 eBay item number 

Hi Scotty,
 Bolt method as Mark mentioned is to grab any 10 mm bolt you have ,,,,
 for example the one presently holding on the upper rear shock on your AT,,,,

  then making up a spacer out of scrap steel for it to push against to get that lump of wound copper armature off … it’s in one of the past topics on here (hopefully)

  Welcome to forum Buddy, know anyone with surname Hunter in Scotland? Probably related
 

 

Thank you everyone.