What causes fuel pump failure on a Yamaha tdm 900?

SOURCE: battery replace tdm 850 yamaha

first remove seat then remove tank, unbolt the 2 nuts holding the fuel pump on then disconnect wiring and then wiring from battery remove 2 bolts holding in battery box and remove through whole where fuel pump was (take care with battery wiring).

SOURCE: Engine will not start.Was running great one day

try a little starting fluid in a carb see if fires if the bike fires up then dies then start checking for fuel line from tank to carb for flowing if it gets down to the carbs and not flowing (not sure if your bike includes a auto fuel shut off or not) but the problem could reside in this location otherwise there could be water in the fuel bowls in which case you drain the cups hope this helps to trace down your problem

SOURCE: TDM battery removal

sell your bike your too thick to own one!!

SOURCE: tdm 900 and cutting out in the rain or wet road

Hi Paul. Your model of TDM is known for this problem. The design of the ignition system is poor and allows moisture to accumulate, leading to loss of spark on one cylinder. The good news is that you can fix it with a little effort. You can find some advice on fixing it here: http://jbx9.free.fr/tdm/index.php?page=ISSUES#1_5

This thread on Carpe-TDM may also help: http://www.carpe-tdm.net/ipb/index.php?showtopic=15971

Best of luck. The TDM is a great bike once you have ironed out the niggles.

SOURCE: 1991 Yamaha TDM 850 Fuel running out of carbs when bike is running?

Hi did you fix this problem as i have the same trouble fitted a carb kit still the same so got a new set (second hand) as mine had a broken choke and tick over screw still over flows when running, can anyone tell me or confirm were the two fuel lines go top and bottom fuel line is the top one the vacume pipe?? mine is a 1992 tdm