01-02-12, 11:58 AM
If the fuel pump ticks for a few seconds and then stops when you switch the ignition on you can probably eliminate that as the cause of the problem, it means it's pumping fuel OK and the back pressure halts the pump once the carb float valves are closed.
If it runs fine to start with and then gets breathless and dies within a few miles, chances are the carbs are icing. Check the water path through the carbs. With the tank off you should be able to unplug the two thin hoses. If you attach a bit of spare hose you should be able to blow through the whole set... if you can't you'll probably have to take them off the bike to determine where the blockage is and clear it.
If it runs fine to start with and then gets breathless and dies within a few miles, chances are the carbs are icing. Check the water path through the carbs. With the tank off you should be able to unplug the two thin hoses. If you attach a bit of spare hose you should be able to blow through the whole set... if you can't you'll probably have to take them off the bike to determine where the blockage is and clear it.