Do your homework.
Spend a little time researching what the jet kit contains and whether that kit is appropriate for your needs.
Do set aside a clean, quiet place to work.
If your shop is under an apple tree, this is one job you might want to farm out.
Do take the time to read the manual beforehand.
Make sure you understand how to remove and replace the carburetors and to perform necessary adjustments.
Do be patient.
Carburetor work can be finicky, and it's easy to get off track. If you take your time and complete each step before moving on to the next one, you shouldn't have any problems. Get distracted and you're liable to spend the whole weekend just trying to get the bike to run.
Don't expect miracles. A jet kit isn't a magic bullet, and in many cases experimentation may be needed before you hit that golden combination. In some cases you may have to settle for a that's-as-good-as-it'll-get solution.
Don't second-guess the instructions.
The guys writing them have installed more jet kits than you've had hot meals. If they tell you to initially adjust the pilot screw to 4.5 turns, do it. If you later find out it runs best at 3.5 turns, then good for you—but don't assume anything that isn't in the instructions.
Don't throw anything away.
Keep the OEM parts and all paperwork that came with the kit, especially if the kit was installed along with open pipes and/or airbox modifications. The bike's next owner may prefer a stock setup.
Don't be afraid to contact the manufacturer's tech line with questions.
These guys have run across most of the problems you're likely to encounter and will be able to steer you in the right direction should you run into any snafus. If you find a kit that doesn't have a line for tech support, take a pass.
Don't panic if something goes wrong.
Carburetors are simply mechanical devices, and there is nothing particularly mysterious about them. If something fouls up, retrace your steps until you find the problem.
- Locate the plug and use a center punch to dimple it as close to dead center as possible.
- Drill through the plug. A few wraps of tape on the bit will prevent it from breaking through and wiping out the adjusting screw.
- Screw in the sheetmetal screw.
- Pull out the plug using a Vise-Grip.