I’ve been toying around with this cause I had the parts just laying around.
OEM Yamaha 155 pump stator housing (chipped stator veins)
Cut out center hub and bored housing
Then machined center hub
OEM Seadoo “Plastic“ 10 vein Mag pump 155, stator veins are chipped BUT I didn’t want to...
The 2stroke cranks are pressed,... so balancing would be impossible due to the rods being slung around.
Some builders do true the webs and Static balance them to insure that the webs weigh exactly the same.