Don’t ever waste your time OR MONEY making Japanese sportbike parts to sell… those guys won’t pay crap for a part, they want you to make them a $400 part for dirt dirt cheap.
They don’t understand or care about tooling cost, cost of materials and least of all they care less about how much $ your time is worth.
Fockers. Sorry but that’s how i feel
If you really want to try making jap sportbike parts I have several molds for sale.