You may be able to find a local store where you can try to bargain with the salesman, or you can buy some parts second hand. However, the price of new engine parts are largely static; it is unlikely you will be able to find brand new components on the cheap. On that note, cheaper engine parts tend to have poorer build quality. To save money, try the options listed above while looking for reputable parts.
One can buy cheap Razor Scooter parts from a number of online retailers. One can get them from 'Scooter Hut', 'Monster Scooter Parts' and 'Shop Razor'.
This task requires an OBDII code reader. Your mechanic will have one or you can buy a cheap one from your local parts place.
You can buy cheap motorcycle parts from most garages and local shops. You would have to call into your local garages for exact price. You can also search advertisements in local papers.
Popular Mechanics has a guide on their website entitled Junkyard 101: How to Find Cheap Car Parts. Additionally, Car Craft also has such a guide, entitled Junkyard Engine Spotter's Guide, which focuses on cheap car engine parts rather than overall car parts.
One reason why one would buy a cheap computer from a third world country is for its parts. You can take the parts and re-use for other computers that may need replacing, or for re-selling.
Someone can order Kohler engine parts from the official 'Kohler Engines' website and clicking on the 'Buy Parts' link. From there one can choose to either find their local dealer or buy parts online.
you can buy a cheap one at gamestop
You can buy pencil lead at almost any store but since mechanical pencils are cheap u can't buy one certain part
You can buy a rebuilt one at almost any auto parts store in parts dept.
You can buy cheap Harley Davidson stuff in Indianapolis at Indianapolis Southside Harley Davidson & Buell, they sell bikes, parts & accessories as well as general merchandise.
You can buy cheap Rip Curl shorts at sites such as eBay. In certain parts of the world, Rip Curl has outlet shops which is always a good place to get genuine discounted items.
Parts for a BMW M10 engine can be purchased at most auto supply centers. The best place to purchase parts though would be through an actual BMW dealership.