Regarding the clutch stack:
I am using stock plastic block and 17T pinion.
I received two spacer washers, one from the Helibug kit (copper-smaller) and another one from Align OWB shaft (required parts pack)
Both of these spacers have OD large enough to overlap with the teeth of the pinion.
Which one am I supposed to use?
I presume it needs to be placed between the pinion and the clutch bell???
The other question is about the flange bearings. One of them needs to go in between the block and the starter coupling (large side up) and two more of them are for the frames for a total of 3. Is there a need for the 4th one?
The clutch nut from the 600 nitro does not fit the 17T pinion (may fit with a lot of force?), are we supposed to put anything on the upper threads of the pinion?