Determine what type of motorcycle or motorcycle part you're looking to purchase. Know the part's name rather than just the description. This will expedite the search process.
Set a price limit. Because you are competing with other buyers who are seeking a bargain. It will also help to research what the new and used prices are for the item you're seeking to set a reasonable price limit.
Research salvage yards and online auction websites to determine what locations are reputable.
Call the junkyards, if you're going that route, to determine if the seller has the part you're looking for. This will save you time
Find out if there are any fees associated with delivering the part and if that sets the price above your price limit.
Online bidding can be challenging. Be sure to be strategic in your bidding process.