If you're experiencing a growling noise when shifting into 2nd and 3rd gear on your Suzuki Gixxer, it could indicate a potential issue with the transmission or clutch. Here are a few steps you can take to address the problem:
Check clutch adjustment: Ensure that the clutch lever has proper free play. If the clutch cable is too tight or loose, it can cause issues with gear shifting. Refer to your motorcycle's manual for instructions on adjusting the clutch or consult a mechanic if you're unsure.
Check transmission oil level: Low or dirty transmission oil can affect gear shifting performance. Locate the transmission oil dipstick or inspection window on your bike and check the oil level. If it's low, top it up with the recommended type of transmission oil.
Inspect the clutch plates: Worn or damaged clutch plates can cause shifting problems and noise. If you suspect an issue with the clutch, it's advisable to have a professional mechanic inspect the clutch plates to determine if they need replacement.
Seek professional assistance: If the issue persists or you're uncertain about diagnosing and fixing the problem yourself, it's best to take your motorcycle to a qualified mechanic or a Suzuki service center. They will have the expertise and specialized tools to diagnose the exact cause of the noise and perform any necessary repairs.
Remember, as a beginner motorcyclist, it's essential to prioritize your safety. If you experience any abnormal noises or issues with your bike, it's always better to seek professional assistance rather than attempting to fix it yourself if you're not confident in doing so.