81 cb750k starter reduction gear rattling?

[Dyl81cb750]

Only happens sometimes but when trying to start it makes a horrible rattling sound coming from the starter clutch gear and the reduction gear being loose I think. All the teeth on the gears look in tact and I didn’t see any chips on them. I checked the bolts holding the drive flange but they are tight. Not really sure what else it could be. Rollers? Also is it worth it to upgrade to a sprag gear or just find an oem for sale on eBay? Thank you

 

[gregb6718]

amc49 said "The starter clutches are well known for rattling, they commonly loosen at the 3 bolts holding the housing together. Loctite to cure. Problems can be past that though, the 3 roller setup just sucks there. The noise you heard was one of the rollers coming loose to skid and the clutch unlocks then."

Sure wish we still had his wise counsel here.