Blog/Maintenance
Rainy season is over: rust and chain care for your motorcycle
The rainy season is over. Here is how to find and stop rust, and bring your chain back to life after months of wet Ilocos roads.

PAGASA has declared the end of the southwest monsoon, so the rainy season is officially over for 2026. That is good news for riders in Ilocos Norte, but months of wet roads leave their mark. Water, mud and sand hide in places you don’t see every day, and that is where rust starts. A careful clean-up now keeps small problems from turning into costly repairs.
Why rust shows up after the rains
Rust needs water and time. During habagat, your bike rarely dried out fully between rides. Mud packed into corners holds moisture for weeks. Now that the days are drier, the damage starts to show: orange spots on bolts, a stiff chain, a squeaky stand or a brake that does not release smoothly.
Catching it early is easy. Leaving it for months means seized parts and replacements.
Give the chain some attention
On chain-driven bikes like the Sniper, Raider, KTM or MT-09, the chain takes the worst of the rainy season. Rain washes the lube away, and sand turns into grinding paste.
- Clean the chain with a proper chain cleaner and a brush, not just water.
- Dry it well, then apply fresh chain lube on the inside of the chain while turning the rear wheel.
- Look for stiff links that stay bent when you roll the wheel. These are a sign of rust inside.
- Check the sprocket teeth. Hooked or sharp, pointed teeth mean the set is worn.
- Check chain slack. A loose chain can slap and jump; a tight one wears out fast.
Rust check: where to look
Scooters like the Click, NMAX, Aerox, PCX and Mio have no chain, but they still rust. Take ten minutes and check these spots on any bike:
- Center stand and side stand pivots. A squeak or a stand that springs back slowly needs cleaning and grease.
- Bolts on the exhaust, footrests and engine mounts.
- Brake calipers and caliper pins. Sticky pins cause dragging brakes and uneven pad wear.
- Throttle and brake cables. If the throttle feels heavy or slow to return, the cable may be rusty inside.
- Battery terminals. White or green powder means corrosion and can cause hard starting.
- Wheel bearings. A rough or grinding sound when you spin the wheel by hand needs a closer look.
Simple habits for the drier months
Wash off any old mud from under the fenders, inside the wheel arches and around the engine. Dry the bike with a cloth and let it sit in the sun for a while. Touch up small paint chips on the frame before rust spreads under the paint. Keep lubing the chain every few hundred kilometers, and park under a roof when you can.
Remember that typhoon season is not fully over. PAGASA still expects a few tropical cyclones before the year ends, so keep your bike ready for the occasional storm.
Let MotoNorte do the post-rainy season check
Not sure what the rains did to your bike? Our Basic Check is ₱299 and covers the engine, brakes, tires, electrical and lights, with a summary of what we find. If you ride an underbone, our underbone PMS packages include drive chain and sprocket cleaning with lube, plus brake cleaning.
Walk in to our shop in Batac City or book online. Start the dry season with a clean, rust-free ride.