Here is what the experts recommend for winter storage:
– Remove and store battery in a warm place and not on a concrete floor
– Replace a battery that has a cracked case or bulges indicating overcharging – it could leak causing significant damage
– If battery removal is not practical, use a battery tender or smart charger to maintain the battery at full charge
– Don’t try to charge the battery by periodically running the motorcycle for short periods. These short run cycles leave the battery in a discharged condition, making it more susceptible to sulfation – a common cause of lead-acid battery failure
– Short run cycles that don’t allow an engine to reach full operating temperature enables water, carbon dioxide and other corrosive elements to build up
– Change the oil and filter to prevent fuel and acid to accelerate corrosion. The recommended synthetic oil may be the best choice
– Water cooled engines should be given fresh extended life coolant at least every 50,000 kilometers
– Fill fuel tank completely with high-octane gasoline that does not contain ethanol. Ethanol can cause deterioration of gasket and rubber material. A full tank prevents moisture building up inside the tank
– Add fuel stabilizer to the full tank of gas
– If the motorcycle has a carburetor, evacuate all fuel from the line and carburetor by running engine with the fuel valve turned off until the engine stops
– Inspect tires and fill to proper pressure
– Clean and protect motorcycle surface finishes and chrome parts with protectorate like WD40 or LPS1 spray
– Cover motorcycle to protect from impact, dust or dirt
– Do not park motorcycle under pipes or other metal objects that can sweat or drip that could damage metal surfaces
– Store away from caustic material including fertilizer, pool chemicals, salts for icy roadways, water softeners or any other chemically reactive compounds
https://driving.ca/suzuki/auto-news/news/storage-tips-for-motorcycles?platform=hootsuite