I have to disagree w/"Mikemax," at-least in-part.
Yes, an anti-freeze which is specifically-formulated for aluminum engines is going to be OK. You can always do the "everything Yamaha" method, expensive, but you know it will work, for fluids, parts, maintenance, etc. Many people choose to do their own maintenance, buy oil from their local shop (motorcycle-specific, please, the additives are different compared to a car engine), use quality aftermarket parts for commonly-serviced items, etc. Examples would be a battery or a voltage regulator/rectifier, bulbs, grips, suspension parts, tires, filters, other electrical components (try pricing handlebar switches and you will see why people go to bike dismantlers), brake and clutch master cylinders/levers, brake pads, etc.
Because DOT 3 and 4 are hygroscopic (they absorb water molecules) it
is a "good idea" to change hydraulic/brake fluid yearly. Next time you are in a junkyard, open the master cyl of the oldest car you see and tell me what the fluid inside looks-like, it will probably resemble cottage cheese or
smegma (look that one up and I bet you try to use it in your next "buddies conversation!"), and it got that way because of not being changed, and from having water in the fluid for a prolonged period of time. Water in the brake fluid will boil from conducted heat from the calipers before the brake fluid will, resulting in a mushy brake lever/pedal and excessive travel, and will also contribute to rust and corrosion in your brake components. If one of those pieces of particulate matter happens to lodge in your smaller "weep hole" in the master cylinder, you will lose lever function, and may have the brake lock-on, not something you want to have happen trying to turn left in front of oncoming traffic!
"if it ain't broke, don't fix it" is advice we all have heard at some point, and if you choose to defer brake maintenance until a part or system fails, "May God help you!," because you are surely going to need it! If nothing-else, working on your bike systems puts you in position to examine your components, and you may find something which needs replacement before the "it's broke!" moment. Would you rather do maintenance in your garage or face waiting by the side of the road trying to shield yourself from the inattentive drivers texting, telephoning, eating, etc. As you waited for road service to evacuate your bike? What about tires, wait until you have a blowout or a flat?
Getting your hands and nose dirty once a month during the riding season checking over your bike is something you need to do to maximize your safety, and checking tires, lights, and brake and clutch function before every use is just a prudent habit to have, "safety first!" Ask any pilot about the pre-flight checkout.
Given periodic maintenance and keeping an eye on things should result in years of motorcycling enjoyment, and when you catch those problems early, that will likely be less-expensive than if you let it/them go until failure. :clapping:
Sitorr, the best thing you can do is go by your Owner's Manual to start with. Prestone Antifreeze will not harm any part of your cooling system. Valve clearances are good for 26K of normal use. DON'T change brake and clutch fluids every year because it's not necessary and can get you in trouble. You've heard the old saying "don't fix it if it ain't broken". Perhaps most important of all is knowing who to believe and who is blowing smoke.
