Please don't follow these instructions. I repeat, these instructions will NOT lead to a safe and well performing motorized bike:
80cc Assembly Manual.pdf
These are not copyrighted or controlled to my knowledge because they are essentially the same for all the Chinese kits. I have another version I'll post tonight.
The main point of this thread is to point out the errors and correct them so people assemble their kits correctly.
I'll start: PAGE 10 "Procedure for attaching throttle cable to carburetor throttle slide" wrongly depicts the zinc plated (silver colored) slotted washer UNDER the E-clip on the mixture pin. That washer should go OVER the E-clip.