How to Solve the Chain Noise Issue on GW250?

[DelIsabella]

This situation is often caused by the motorcycle being left outside in the rain, leading to chain rust. Applying lubricating oil to the chain and rotating it several times should resolve the issue. Check if the chain case has any dents or warping. If so, it is necessary to completely remove the case and restore the dents or warping.

[MacNathan]

Chain noise is quite common on the GW250. To address it, first check the chain tension—typically maintaining a 20-30mm gap is ideal. If it's too loose, tighten it using the chain adjuster. Next, clean the chain by scrubbing off grease and dirt with an old toothbrush, then apply chain lubricant (avoid engine oil, as chain-specific lubricant offers longer-lasting rust protection). If the chain is significantly worn or stretched, replace it promptly to avoid the risk of detachment, which is dangerous while riding. I always inspect mine before long trips, ensuring proper wheel alignment, as misalignment can also cause noise. Additionally, clean and lubricate the chain immediately after rainy rides, as moisture accelerates rust and wear. Regular maintenance saves significant repair costs.