in regards to the to the Ca. motor SKU# 66014 the lip on the gas tank can be hacked off with an angle grinder, HF basically welded an extra 2 inches on to the 66015 "L" shaped tank, anyone can modify their tank so long as they don't cut too much, they will just need to purchase the 66015 gas cap, and like magic it will fit into the DB30 frame. when i get a chance i will post some pics. just thought this would be useful info.