Woodruff key replacement

STNY

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My woodruff key holding the belt drive on fell out while riding the other day anyone know what size it is so i can buy a replacement? Gonna use some loctite this time around smh.
 

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the engine is a hs142f with a 5/8th straight shaft if that helps, was gonna buy one of those big 100 peice boxes off amazon but i dont want to put the wrong size in there and it not fit.
 
My woodruff key holding the belt drive on fell out while riding the other day anyone know what size it is so i can buy a replacement? Gonna use some loctite this time around smh.
You need 4mm × 4mm square key stock at least 1inch long or 25mm long.

I reccomend to just buy a foot long stick of 4mm square key stock.
 
That is not a woodruff key. That takes square key stock. I'll have to measure mine to get you the size.
I stumbled on this thread bc someone told me they thought my woodruff key was sheared based on issues that I've been having. Anyhow, before I go pulling the flywheel off. Would a 144F have the same square key stock?

And if so, do they break or shear as easily as a woodruff key?
 
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