2003 YAMAHA VMAX 250 VX250TLRB CUTS OFF

[dwmgg17]

DURING THE LAST 3-4 TRIPS MY MOTOR HAS JUST CUT OF WHILE RUNNING. ONLY ONCE EACH TRIP. NEVER HARDLY RUN OVER 45 MPH. IT HAS CRANKED EVERY TIME AFTER IT HAS HAPPENED THE FIRST TIME WITH NO PROBLEM. YESTERDAY IT CUT OFF AGAIN WHILE HEADED TO RAMP RUNNING ABOUT 30MPH AND WOULD NOT RESTART AFTER MANY ATTEMPTS. AT THE RAMP ANOTHER BOATER CHECKED IT FOR ME AFTER I GOT IT TRAILERED AND HE SAID HE COULD NOT HEAR THE FUEL PUMP KICK IN TO PUMP THE FUEL. BUBBLE WAS PUMPED UP TIGHT AND SEE THRU BOWL IS FULL OF FUEL. LOOKED AT THE DIAGRAM OF THE MOTOR ON THE INTERNET WHEN I GOT HOME AND IT HAS 3 SMALL BOXED SHAPED SQUARES ABOUT 2" LABELED FUEL PUMP. WHERE SHOULD I START WITH THE REPLACMENT OF THESE PUMPS IF THE GUY WHO CHECKED IT WAS RIGHT. HE RUNS A MARINE SERVICE IN THE SOUTHERN PART OF THE STATE SO I WOULD THINK HE IS PROBABLY RIGHT. I HAVE THE KEYPAD START/STOP ON THE 521VX AND NO KEY TO TURN TO CHECK IT . THANKS IN ADVANCE FOR ANY REPLIES OR HELP. NOT IN NO RACE TO GET IT RUNNING AND RETIRED SO LOOKING TO TRY AND DO IT MYSELF IF AT ALL POSSIBLE.

[Charlie206]

Fuel pump relay most likely. It is in the electrical box on the side of the powerhead. It should meter 12v output key on, how that works with no key I don't know.

[tjbev13]

Have the same issue going on, If i pump the primer ball it will run fine, I am going to do all 3 LP Pumps, replace VST filter, motor mounted fuel filter, spin on water separator, and clean the 02. Ill see how that goes.

[dwmgg17]

Went out today and was going to start working om mine and decided to try it and see if it would crank and yes, it fired right up. Tried it 3 different times today and it fired up every time????????????????????

[21XDC]

99% sure it is the relay... Been there, Done that on mine...


Have a look>>> http://www.bbcboards.net/showthread....uel+pump+relay