When going out of station for months, leaving bike not starting for months , should I disconnect the battery & switch off the petrol supply to keep it in running condition when I come back to start it?

Yes, disconnecting the battery and switching off the fuel supply can help maintain your bike while you are away for an extended period. Here are some steps you can follow to ensure your bike remains in good condition:

**Disconnect the Battery**: Removing the battery or disconnecting the terminals (usually the negative first) can prevent battery drain. If you have a maintenance charger (smart charger), you can connect that instead, which can keep the battery topped up without overcharging.

**Switch Off Fuel Supply**: If your bike has a fuel petcock (fuel valve), you can turn it off. This helps prevent any fuel from leaking into the carburetor or fuel system that might cause problems.

**Fuel Stabilizer**: Consider adding a fuel stabilizer to the fuel tank before you leave. This helps prevent the fuel from breaking down and causing issues when you try to start it again.

**Check Tire Pressure**: Inflate the tires to the recommended pressure to avoid flat spots developing.

**Cover the Bike**: If possible, cover the motorcycle to protect it from dust, moisture, and pests.

**Lubricate Moving Parts**: Lubricate the chain and any other moving parts to prevent rust and corrosion.

**Change Oil and Filters**: If you can, change the oil and filter before leaving. Old oil can contain contaminants that may harm the engine.

**Ensure the Bike is in Gear**: If you don't have a center stand, leave the bike in gear to prevent it from rolling.

When you return, reconnect the battery, check the fuel system for leaks, fill it up with fresh fuel if necessary, and go through a quick pre-ride inspection before starting your bike. This will help ensure that your bike is in running condition when you return.