I have a 2001 Suzuki maurader vz 800 it runs ok at idle but has little power at load

Clogged fuel petcock or dirty fuel filter.

Have the timing checked first. It may have slipped because of a worn timing belt. The engine control module can be in the limp in mode if it has failed .

Burnt Exhaust valve. If it's got a water cooling system the pump empeller blades may be eaten away. Change the radiator cap first. If it has a pin hole in the old one, the system will not pressurize. Lean mixture adjustment on carb (s) will do it too. Also ignition timing is a possibility. or a kinked oil line. -Kelly Calk- Certified Harley Davidson Mechanic.

you can find a screw with spring loaded in Carb just unscrew little to reduce and screw inside to increase idle.

pop the seat, and unscrew the two screws you see at the base of the tank. Slowly lift up and pull towards the rear of the bike, the tank will pop up enough so you can pull the wire and thenuse a deep well socket on the plug. Do one then rotate tank the other direction and do the samething for the other

is fuel getting to the engine

The timing is not adjustable on the Maurader.

you have your self a dead cly. the find out if its the front or rear. know you just need to find out why its not running. if it blows smoke bad if could a number of things start with checking spark, let know what happens
Mark
C.C. Motorsports

IT COULD BE TIMING CHAIN TENSINER GOING BAD TIMING CHAIN GUIDS BROKEN SEEN THIS BE FOR HOPE THIS LEADS YOU SOME WHERE

did this just start all of a sudden or after being stored for a while? if it was stored then try new fuel, check and change fuel filter, and get some fuel system cleaner that goes in the gas tank, run til hot then let stand overnight. and try, old gas can gum up carbs starving the enging of fuel.