No Wheel Weights!???

I was under the impression most tires had the lightest spot marked...
I work on motorcycles, and virtually all tires with the exception of Michelin are marked.
That said, if I spin it and it asks for a lot of weight, I will frequently re-orient the tire on the rim to lessen the amount of weight asked for...

This^ If they call for a lot of weight i spin em up to 4 times. First 180 then 90 then 180 from that. If it still wants too much weight time for another tire. Ive only seen one tire that would not change by spinning it on the rim in the 6 years ive been changing them. I mounted tires on a dually and have seen them want 5.00 oz on the left plane and 7.00 oz on the right plane. Spin tire 180 and changed it to 3.00oz on the left plane and 2.75 oz on the right plane