1. Compatibility: Silicone and rubber gaskets do not always have good adhesion and can cause leaks.
2. Temperature Resistance: Silicone has a lower temperature resistance compared to the high temperatures that a motorcycle engine may reach, which can lead to gasket failure.
3. Gasket Life: Silicone tends to dry out and lose its flexibility over time, which can cause the gasket to become brittle and crack, leading to leaks.
4. Proper Seal: Gaskets are designed to provide a tight seal to prevent leaks, while silicone may not be able to effectively fill all the gaps and irregularities, resulting in potential leakage.
The proper way to seal a starter cover gasket on a motorcycle is to use a new OEM (Original Equipment Manufacturer) gasket or a high-quality aftermarket gasket specifically designed for that motorcycle model. These gaskets are made of suitable materials that can withstand the operating conditions and provide a proper seal.
