you could replace the tank.
or replace the fuel cap.
is the drain line from the filler neck blocked? any rain water should run down it instead of going into the tank.
A fuel system cleaner like Silkolene Pro-FST will clean all the fuel system components including the tank. It's a fuel additive. Put it in a full tank and your tank should clean up. You made need to add it to a couple of tankfuls.
all much cheaper options than changing your bike.
but getting rust in the carbs won't ruin them. it may block jets but that fuel treatment will dissolve it all. much cheaper than having your carbs cleaned.
or replace the fuel cap.
is the drain line from the filler neck blocked? any rain water should run down it instead of going into the tank.
A fuel system cleaner like Silkolene Pro-FST will clean all the fuel system components including the tank. It's a fuel additive. Put it in a full tank and your tank should clean up. You made need to add it to a couple of tankfuls.
all much cheaper options than changing your bike.
but getting rust in the carbs won't ruin them. it may block jets but that fuel treatment will dissolve it all. much cheaper than having your carbs cleaned.