Identify iame x30 bearings. Roller och normal

Hi! is there a way to identify if my engines have roller bearing or normal bearings without dissasembling the whole enigne? Thanks!

And when i was removing reeds i noticed that my rod can wobble around 2mm to each side when i touch it with my finger is this normal??
and cranc has about 4mm play to each side of engine when muching from clutch side to ignition side

You can check by removing oil seal but you have to put new ones in.

As for axial play, it should be 0.3-0.4mm of play

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