If the temperature gauge on your Bajaj Pulsar NS 200 blinks and the radiator fan starts as soon as you start the bike's engine, it could indicate a potential issue with the cooling system. Here are a few possible reasons for this behavior:
Overheating: The blinking temperature gauge and the immediate activation of the radiator fan could be a sign that the engine is running hotter than normal. This can be caused by various factors such as insufficient coolant, a malfunctioning thermostat, a clogged radiator, or a problem with the water pump.
Coolant level: It's possible that the coolant level in the radiator or coolant reservoir is low. When the engine is started, the temperature sensor detects the low coolant level and triggers the warning system to protect the engine from overheating.
Faulty temperature sensor: There is a possibility that the temperature sensor itself is malfunctioning. This could cause it to send incorrect signals to the gauge and the fan, leading to the unusual behavior.
Electrical issue: A problem with the electrical system, such as a short circuit or a faulty connection, could also cause the temperature gauge to blink and the fan to activate prematurely.
To address this issue, it is recommended to take your motorcycle to an authorized service center or a qualified mechanic. They will be able to diagnose the problem accurately and provide the necessary repairs or adjustments to restore the cooling system to proper functioning. It's important not to ignore this issue as prolonged overheating can cause engine damage.