I also started lapping the cases. How much time do you spend on lapping. If I hold my cases together by had and hold them up to the light I can still see a bit of light coming in by the crank. I dont want to take too much off but I feel like the amount of metal actually removed is minuscule
I wouldn't want to see any light coming through on my cases...
When I lapped my cases I took Motorrads advice and put a bolt into one of the bolt holes, not tight but just enough to use it as a pivot point.
Then I worked the top case back and forth for a bit.
Then I moved the bolt to another location and worked it some more.
I moved the pivot bolt in a star pattern.
Each time I moved the bolt I applied more time saver..
When I was done I cleaned the cases and checked them out.... No gaps, extremely tight fit...
How much time should you take?
As long as it takes...