GS150 fuel tank rust cleaning-my experience
1. First clean the tank with warm water
2. Fill the tank with white vinegar for 12 to 15 hours and keep shaking according to your convenience.
3. Use Baking Soda after draining out vinegar to neutralize the acid (vinegar). about 100 to 200g soda with about 3L water for about half an hour. Shake well and drained it out.
4. Clean the tank with warm water to let all soda wash out.
5. Dry the Fuel tank using hair dryer or air pressure or under sunlight.
5. Let the tank in sun light to dry out completely to slow down the rusting process.
6.
7. Use good magnet at the lowest bottom of the tank but far from the fuel tap. This will helps to stop rusting traces to move towards fuel tap.
I hope this woul help you guys
Regards