Magneto Question

Dr. Frankenstein · Post by **Dr. Frankenstein** » Fri Feb 22, 2019 5:25 pm

When putting the magneto back on the spindle, is there a proper way to do it? On my CA95, it gave me fits because on that bike there's a certain trick to getting it on - you have to push and turn at the same time...with this CA77, I put the woodruff key in the spindle and tapped it back on...but is this right, and how far down the spindle is it supposed to go - all the way to the seal?

Oh, and Shop Safety Tip #1: when holding and de-rusting the big dynamo sprocket by hand with a steel wire wheel in a hand-held drill, do not let the power drill/wheel catch the sprocket teeth, jump, and walk up your shirt before digging into your chest and chin - put it in the vise instead. Never get too comfortable with power tools. Just sayin'...

Luckily it didn't bleed too much...;) Thank God for reversible drills.

mike in idaho · Post by **mike in idaho** » Fri Feb 22, 2019 6:45 pm

You should never hit on the alternator rotor, it tends to de-magnetize it, that affects the charging output.

Dr. Frankenstein · Post by **Dr. Frankenstein** » Sat Feb 23, 2019 9:24 am

Good to know; so, what is the right way to reinstall it?

mike in idaho · Post by **mike in idaho** » Sat Feb 23, 2019 10:38 am

Line it up so it slips over the woodruff key and snug down the bolt. I'm sure there's a torque spec for that somewhere.

Dr. Frankenstein · Post by **Dr. Frankenstein** » Sat Feb 23, 2019 10:47 am

That's *just what I was thinking...

cknight · Post by **cknight** » Sat Feb 23, 2019 10:50 am

If the complete electric starter clutch is mounted to the rotor, you should have to turn (to retract the rollers) and push, once the keyway is aligned. Just like your CA95. Regards, Chase

Dr. Frankenstein · Post by **Dr. Frankenstein** » Sat Feb 23, 2019 11:13 am

I got it on, I was just wondering how far down the spindle it goes. As far as it can? like, right up against the seal?