I've googled for hours, still I can't find any information about the mass/ weight of the OEM piston, incl. or excl. pin and rings.
I'd like to know before buying a new piston and without unneccesary opening the engine.
JE pistons 11:1 100 mm 367 grams
JE pistons 11:1 102 mm 382 grams
Wiseco 11:1 102 mm ?? grams
Wössner ?:1, 100 mm 408 grams
CP pistons 11:1, 100 mm ?? grams
...
A matching weight would mean I can avoid disassembling the entire engine just for balancing the crankshaft. Although it is a hobby, I try to leave things as they are if it ain't kaputt.