Seems like my engine on my Lifan isn't getting fuel. Has been fine up until now not sure what the problem is. I can bump start it but it won't fir e up with the kick or the electric start. It is the GY 200cc. It isn't listed below but I picked the LF 200 just to submit the problem.

Most likely is it carburetion or engine timming.

The bike is a knock off ....
Here is the actual service manual for the bike

http://nans.1gb.ru/motomanual/Yamaha/Yamaha%20XV250.pdf

You may be right on your hunch.
The fuel pump gets power from the pump relay for 3 seconds when you turn the key on, then no power until the engine starts. If the fuel pressure is low it could take several trys to get the pressure up to normal and the engine start.
A mechanic would check the pump relay and the fuel pressure with a gauge before and after cranking the engine.

If it starts fine and idles fine but then stalls or doesn't have power when you juice it, it sounds like a fuel problem. It is unlikely a carb issue if it gets regular use and as long as its not sitting for long periods of time. I would first check the fuel filter. If that's fine, then I would check the vent hole on the gas cap (if you have one). If it is a gravity-fed fuel system and the vent hole on the gas cap is clogged with dirt, dust, and debris, then the gas will not flow to the carb fast enough and you'll get a very lean mixture. Sure, it will idle fine because the engine isn't demanding much fuel at idle, but when you open up the throttle it will stall because the air:fuel ratio will be too high (symptomatic of a lean mixture) Last thought: Dirty air filter Let me know if this helps

If a starter is able to crank the engine but it won't start you usually have either an electrical or fuel problem. It's also remotely possibly that it's compression.If an engine has proper fuel, spark and compression, it will start when you crank it. So your challange is to find out which part isn't working right. Start with fuel. Spray a little starting fluid into the air intake while someone tries to start the engine. If it starts briefly when you're spraying starting fluid, you probably have a fuel delivery problem. That could be injectors, fuel pump, fuel filter, relay, fuse... who knows what until you check into it.If it doesn't start with starting fluid, check the spark. Pull a plug wire and attach it to a spare sparkplug and set the plug on a solid metal part of the engine. Have a helper crank the engine while you watch the plug. If you have a good spark, it might just be out of timing.In any case, you'll need to start isolating the problem. Find out which part isn't working then you'll know what to replace/repair.

If a starter is able to crank the engine but it won't start you usually have either an electrical or fuel problem. It's also remotely possibly that it's compression.

If an engine has proper fuel, spark and compression, it will start when you crank it. So your challange is to find out which part isn't working right. Start with fuel. Spray a little starting fluid into the air intake while someone tries to start the engine. If it starts briefly when you're spraying starting fluid, you probably have a fuel delivery problem. That could be injectors, fuel pump, fuel filter, relay, fuse... who knows what until you check into it.

If it doesn't start with starting fluid, check the spark. Pull a plug wire and attach it to a spare sparkplug and set the plug on a solid metal part of the engine. Have a helper crank the engine while you watch the plug. If you have a good spark, it might just be out of timing.

In any case, you'll need to start isolating the problem. Find out which part isn't working then you'll know what to replace/repair.

hi u could have ablocked fuel filter try replacing it if u have and motor is carburetered check were fuel line fits onto carby theres often a fine gause filter inside the bango fitting hope this helps

You can't fix it yourself. It takes a scanner at your Local Dealership to do it. People do it, (new battery) everyday unaware that doing so can and usually does, arm the theft system and either kills the radio or the whole car. To me it's just another built-in defect that requires dealer assistance. It's a buzzkill I know, and it probably won't be long until car owners won't even have access to the engine compartment. Sorry.

disconnect the hose that goes into the fuel injectors rail, put it into an empty coke bottle and ask for a friend to put the ignition switch in the on position. if there isn't gas going into the bottle, then you should check for the fuel pump relay and if it's ok then check the fuel pump. Check the fuel pump fuse too.

check relays/fuses first then the pump if you know how to test it
the pump is easy to test locate any fuel line unplug it tell a friend to make a quick one key turn if squirts fuel then pump is fine
but check the pump relay first to make sure and to begin with simplest
it seems you can tell it is the pump but you don`t know where to start