Yamaha GT 125 2017 Owner's Manual page 45

TIP
 Air filter
• This model's air filter is equipped with a disposable oil-coated paper element, which must not be cleaned with com-
pressed air to avoid damaging it.
• The air filter element needs to be replaced more frequently when riding in unusually wet or dusty areas.
 V-belt case air filter
• The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
 V-belt
• The V-belt should be checked at the initial 8000 km (5000 mi) and every 4000 km (2500 mi) thereafter. Replace the
V-belt if any damage or wear is found. The V-belt needs to be replaced every 25000 km (16000 mi) even if there is
no wear or damage.
 Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level. After dissembling the brake master cylinders and cal-
ipers, always change the brake fluid.
• Every two years replace the internal components of the brake master cylinder and caliper, and change the brake
fluid.
• Replace the brake hose every four years and if cracked or damaged.
 Fuel system service
• Use only unleaded gasoline. The use of leaded gasoline will cause severe damage to internal engine parts, such as
the valves and piston rings, as well as to the exhaust system.
• Replace the fuel filler cover every two years or if cracked or damaged.
• Check the fuel filter if clogged or damaged every 12000 km (7500 mi).
 Battery service
• Check the condition and service every 3 months.
• Recharge the battery immediately if the voltage is less than 12.4 V.
• If the battery tends to discharge, replace it immediately.
Periodic maintenance and adjustment
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