CARB REBUILDING TRICKS: Introduction: NOTE1: unfortunately, the title above is somewhat mis-leading, for there are no real "tricks" to rebuilding these carb sets correctly.......just having the proper knowledge, the proper tools, and the organizational skills, persistance, and a dedication and determination to doing the job right! These things aren't magic. They aren't due to luck. Having your carbs perform properly is not akin to winning the lottery, i.e. some people get lucky and others don't and that's just life. If you dig deep, if you could stand over the shoulder of those who are successful and those who aren't, the ways in which success is determined are pretty clear-cut and straight-forward, as outlined further below. As are, unfortunately, the ways in which a lack of success are achieved. This guide aims to help you achieve the former. NOTE2: these guidelines are written specifically with the following carbs in mind: * the Hitachi HSC-32 and HSC-33 series carbs used on the XJ650 (except Turbo), XJ700 non-X (air-cooled) models, and all XJ750 models (except "X" models), and..... * the Mikuni BSxx series of carbs used on XJ550, XJ650 Turbo, XJ700-X, XJ750-X, XJ900RK, and XJ1100 models. Although many of the same thoughts and priciples will apply to other similar carbs used on other Yamaha models, some minor (or major) differences may apply to other model bikes and carbs. NOTE3: between research, reading, learning, studying, and then actually DOING the carb removal, rebuild, re-installation and tuning tasks, expect to spend a good 16-20 total hours during your first go-round. And at least 2 of those hours are going to be spent on simply removing and then re-installing the carbs back onto the bike, and then another 2 hours performing the after-install start-up, synchronization, and tuning efforts. If you don't leave yourself enough time to do the job correctly, you will end up rushing, taking shortcuts, and breaking Commandment #1 (further below), and typically horrible results and outcomes can be expected. Take your time, be prepared, do it right, and it's a fairly simple process. Do it in any other manner, and you'll chance living the old Fram oil filter commercial warning and slogan: "You can pay me now, or you can pay me (a lot more) later........." NOTE4: after reading all what's written below, you might be immediately tempted to: a) doze off to sleep. b) go running, screaming, head in hands, to the nearest bar or pub. or c) go out and purchase guns and ammo. RELAX! Although it seems long.....a lot longer than the 5-6 pages that the factory service manual chapter devotes to the entire "carb rebuild" topic....that's because it's more inclusive and includes all of the things that they "forgot" to include (or didn't even realize would be necessary after 25+ years). Service manuals are designed for experienced service technicians, and are designed to guide them through the complete process, but only with the most basic steps necessary to accomplish the job while also beating the "flat-rate manual" time allotted for the task. What is detailed below is basically not only a more (much more!) exhaustive and thorough "rebuild" procedure than the factory would ever dream of specifying, but they're also written in a manner to help guide a non-experienced wrencher thru the process CORRECTLY the first time around, and will explain not only the "basic service", but also how to almost "blueprint" your carbs to good-as or better-than-new condition. So break out your favorite beverage and spend a little time reviewing this info. At the bottom of this section are a few great links to some pictorial guides on both the Hitachi and Mikuni carbs, that, when used along with the suggestions below, may allow you to visualize all the dirty little details mentioned below much more easily. HOWEVER, as we mention elsewhere, this is not a step-by-step instruction manual! So please make sure that you also have available a factory or aftermarket workshop manual to guide you along your journey to carburetor Nirvana (there will be 4 dancing, almost-virgin carbs waiting for you there.........). Good luck! But, with what you now have at your disposal, luck will perhaps not play even a minor role anymore in the success of your carb rebuild project!