Tomos A3 jerky first gear

Tomo Arigato /

So I'm getting issues at low speed in first gear, it will seem to engage momentarily and buck forward a little bit, feels like gears are not quite engaging fully. When I look at the gear teeth on the back of the clutches and the counter shaft they don't appear rounded. Picture below (nut on clutches is taken off) Also once it shifts into second it rides really smooth. Any ideas greatly appreciated!

moped trans.jpg

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