GP3 Reverse crank bearings

Hi guys


i´m planing to renew them and was wondering, are they the same size than the other GP3´s bearings, 6202 ?

Want to change waterpump´s bearings too, are they 608 too?

I answer to myself

crank bearings 6203
water pump bearings 608 Z
reverse gear bearings 6201/P6

Hi I have a gp3 reverse that I am trying to put back to gether can any one tell me the quantity of oil needed to be put in crank gear box to ensure the motor does not seize. I was given this motor in peices and am trying to put it back together have never worked on a gp3 before any help would be greatly appreciated

6cc of oil - polini recommend 10w/40 , I prefer a proper transmission oil like silkolene 75W light racing gear oil.

Thanx heaps stuart
cheers
rcb