Leaking gas frm bottom and does not run right

not told how old the fuel is
and can be bad 1+ year old
compression good
good fuel
carb clean.
spark good.
filters not clogged.
electronics speedo or cable driving, no way cable can fail parked at 0mph, but if electronics to not work with dead or weak battery 10vdc is min 12.6vdc is good key off rested.
a good battery is first, the bikes generator may not run the biked proper if battery overloads any gen. so batter good is first on bike. (MC)

Try some gas line anti freeze (methle hydrate) It will dissipate water which may have been at the bottom of the tank. If he put regular gas and you put super, add octane boost. and drive for half hour and it will clear.

Have the fuel pressure tested, running out of gas will destroy the fuel tank moumted fuel pump or cause it to run slow with the resulting loss of power.

Check Fuel Filter and run a couple of bottles of Sea Foam through....

Bad fuel pump, stopped up fuel filter, mabey? First check for vacume leaks.... may try unplugging the throttle position sensor. Plug it right back in... just check the connection.

the first thing I would start with is looking for vaccume leaks. be sure to check your EGR valve, then move to your MAP sensor. The next thing that it could be is a stopped up catylic converter

If it is bad gas then you need not only drain the tank but the carbs as well.

If the tank has the valve with three positions on it such as on, off and pri.
then you need to put it in the pri position after you remove the main outlet fuel line from the tank and make sure you have a suitable container to catch it in.

On the bottom of the carbs you'll find a screw which i think requires a phillips screw driver. You'll need to back those screws out until you have a fuel flow coming from the bottom of the carbs. After that close down the screws and replace the fuel lines. Leave it in the pri position until after you have put new gas in the tank. Once, this is done then turn the lever to the on position and it should start. If it doesn't then it could be dirt in the carb or no fuel flow to the carbs re blockage in the tank filter. I do believe also, that this pitcock may have a diaphragm in
it. If it doesn't then you shouldn't have a pri on the petcock lever on the tank.

Try this before, looking anywhere else.
Good luck,
skidooer

Check for vacume leaks first. Rubber lines..gaskets to carbs ect. Also remove and blow out your fuel line to tank and change out filter. Hope this helps.:)

does this happen all the time or just sometimes?if it happens all the time you need t change your spark plug sometimes you probally have water in the gas drain the carb bowl the little flat head brass screw on the bottom of the bowl make sure your gas is on to flush it out buy some stabil ethonal treatment and run it every tank fuel good luck

Your timing belt could be broken. You want to have this checked as soon as possible to prevent any further engine problems.

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