Join Date: Oct 2015
Location: Melbourne, Australia
On my 2012 dl650a the previous owner let the fuel tank get somewhat rusty inside. On my first inspection (tank off and fuel pump removed) I found patches of light rust about halfway up inside the tank. That rust sediment collected around the Ďtea bagí strainer at the bottom of the pump assembly, and some made its way further into the internal filter (inside the plastic housing). I replace my pump (which is better described as an impeller motor) with a compatible one from ebay, but still had the squeal. What I since done a couple of times is dismantled the plastic pump assembly and used kerosene to back-flush the internal filter and got some fine particles removed. Since doing the flush I donít have the squeal anymore, however throttle performance improvements only last about a month before I have to redo the process.
Iíll be doing the in-line filter replacement though because itís a bit of a pain having to keep doing this, and naturally I need to tackle the tank rust with a good treatment process as well.