Online Forums and Communities: Join online forums and communities dedicated to Suzuki motorcycles, specifically the Gixxer SF FI 150ABS. Fellow owners or enthusiasts might have digital copies or recommendations on where to find the service manual.
Third-Party Websites: Some third-party websites offer service manuals for various vehicles, including motorcycles. Conduct a thorough online search for websites that provide motorcycle service manuals and check if they have the specific manual you're looking for. Be cautious of the reliability and legality of such sources.
Remember to always follow copyright laws and respect intellectual property rights when accessing service manuals.