everytime i took the 6100 out for a ride, i had to pull it home with my pickup and a farmer brought me home once with his tractor. realizing that it was dirt in the tank that was causing me the issues and not in a position at the time to buy a new tank i got this idea of taking a bunch of cleaned #2 stone and putting it in the tank with some heavy duty cleaner degreaser. i danced with the tank for an afternoon until i couldnt dance any longer. after i got all the stone out i flushed the tank numerous time with the hottest water i could find. after letting it dry with the hot sun beating on it i reinstalled it. i added a see thru filter between the tank and the fuel pump. i have'nt had to get a ride home since. as time goes on i have to change the filter out less and less. the hose i used is still full of varnish and on hot summer days i get all sticky from using it and it reminds me everytime how it got that way.