Keep it clean.
One of the biggest mistakes that students make is failing to clean their trumpet. A lot of saliva builds up inside the tubing, which invites bacteria and gunk to build up over time. We highly recommend the Yamaha Trumpet Maintenance Kit™ to keep your trumpet clean - it's one of the most popular choices for students everywhere!
STEP 1: TAKE IT APART
Begin the cleaning process by laying down a towel or paper towels on a smooth surface. This will prevent the surface from scratching the finish on your trumpet.
Next, take apart every single piece of your trumpet. When you clean, don't do it half-heartedly; if done well, you should only need to clean your trumpet once every few months, but we recommend at least once per month.
Make sure to keep track of all parts to your trumpet. If you lose one, it can be costly to replace!
STEP 2: RINSE & CLEAN
You should begin the cleaning process by running warm water throughout the main body of the trumpet. Many people perform this task in their bathtub, but some prefer to use sink hoses in their kitchen. NOTE: DO NOT USE A GARDEN HOSE!
After you've rinsed out all of your other tubes & slides, use the various brushes included in your cleaning kit to gently brush out any green gunk that's been building up inside of the trumpet and its accessory parts. Once finished with each, rinse out any loosened gunk with warm water and dry with a dry cloth or paper towel.
Don't worry - running water over brass will not make it rust, as long as you don't let it sit for long periods of time.
STEP 3: LUBRICATE & REASSEMBLE
The last step is to put the trumpet back together. Before reinserting your tuning slides, use the slide grease to apply a thin layer to each slide. You'll probably get some buildup, so make sure to move each slide back and forth a few times before removing the excess slide grease.
For your pistons, apply a few drops of valve oil to each piston before reinserting back into their casings. Don't overdo this, otherwise it can lead to sluggish valves due to too much oil. Move each piston around the valve casing to ensure the oil has been evenly applied before tightening the caps. Don't apply oil through the bottom hole - these are to allow air to escape when depressing the valves, not to apply oil to the pistons!
Once your trumpet has been reassembled, play a few notes and test everything to make sure it's working properly. If you cannot blow air through your trumpet, you either inserted a valve into an incorrect casing (they are numbered 1,2,3), or you didn't lock it in properly - this can be corrected simply by rotating the piston until you hear a 'click' sound.
Here's a fantastic trumpet cleaning tutorial video produced by Drew Roberts.
You can get by with the basic cleaning and maintenance accessories from your Yamaha cleaning kit, but we recommend popular, proven products used by trumpeters everywhere.