A decrease in pickup or performance of a motorcycle over time can be influenced by various factors. While it's difficult to pinpoint the exact cause without a detailed inspection, here are a few common reasons why the pickup of your Suzuki Gixxer 155cc may have gone low:
Engine Wear: As the engine accumulates mileage, internal components such as piston rings, valves, or cylinder walls can wear down. This wear can result in reduced compression and overall power output. Regular servicing helps maintain the engine's health, but some level of wear is inevitable over time.
Fuel System Issues: Problems with the fuel system can lead to decreased performance. Clogged fuel injectors, a dirty fuel filter, or a malfunctioning fuel pump can restrict fuel flow and affect pickup. Regular cleaning and maintenance of the fuel system can help prevent such issues.
Air Intake and Exhaust: A restricted air intake or exhaust system can hinder the engine's ability to breathe properly, leading to reduced performance. Check for any clogged air filters, carbon buildup in the exhaust system, or leaks in the intake or exhaust pipes.
Spark Plug Condition: Worn or fouled spark plugs can result in inefficient combustion, causing a decrease in power and pickup. Consider inspecting and replacing the spark plugs if necessary, according to the manufacturer's recommendations.
Timing and Ignition System: Incorrect ignition timing or issues with the ignition system can impact performance. Faulty ignition coils, wiring, or sensors may affect the spark timing and result in reduced power. Consult a qualified technician to inspect and adjust the timing and ignition components if needed.
Tires and Chain: Worn-out tires or an improperly adjusted or worn chain can introduce additional resistance and affect overall performance. Check the tire condition and tread depth, and ensure the chain is correctly tensioned and lubricated.
It's recommended to consult a professional motorcycle technician or authorized service center to diagnose and address the specific issue with your Suzuki Gixxer. They can perform a comprehensive inspection, identify any underlying problems, and provide appropriate solutions to restore the pickup and performance of your bike.