I have a ccm r30 644 2004. The bike will not start i am getting fuel to the carbs but i presume its not going through to the head. I have taken spark plugs out and checked them i have also added a little fuel into head and then put spark plugs back and its fired up 1st time, but then obviously dies on me! Iam not sure where to go from there and what the next step is, any help would be much appreciated?

if theres a spark at the spark plug then your problem is with fuel. take out spark plug and pour a cap full of fuel down the hole,put plug back in and try to start it. if the bike starts you could be lucky and it will keep running. if it dose not then you need to check fuel lines and carb.... putting a bit of fuel in the head should fire the bike up and hopefully fill the carb and lines to keep it going

I think this may be another one of those faults due to the ethanol and other **** in modern fuels.
There is so much rubbish in petrol the stuff just wont keep also ther have been a lot of problems with the stuff rotting fuel lines this may be your problem, the float needle may be getting stuck by particles of fuel line.

Flooding carbs often means that the needle valve that the float is supposed to close is leaking, causing the float chamber to overflow. replace needle valves.

If it has been sat with fuel in it for more than about 9 months, the problem is most likely to be the carbs. When fuel evaporates it leaves a gummy deposit in the float bowl. The first start can allow this to get in to the jets and cause blockages.

the carb and fuel tank can still be dirty inside and recomend you clean these out and replace the fuel !

hummm check your electrical connections make sure you have the stop run switch is in run position,you have fuel flow to the carb, make sure you are getting spark to the spark plug by using a extra spark plug remove the plug cap and ground it to the head and kick start the engine and see if you are getting spark to the plug.
hope this helps

check the fuel filter for sediments clean the carb filters too if your bike has one, overhaul the carb if necessary....

Check the carb diaphrams for any tears/pinholes? (They are on the top of the carbs) Have you reconnected the breather from the tank? Is fuel getting past fuel tap? Sometimes the vent in the fuel cap can get blocked with crud and create a vacuum which stops fuel flowing.

hey there matey,, just to run a few things with,, have u taken the spark plug out and cleaned it up,,try a new plug 1st,, to be sure, or if u have a new plug,, take out the spark plug place it back in its cap and rest it on the cylinder head and either elec start it or kick it over and make sure u have a spark ,, if all is ok on the above,, then turn to fuel and carburetta, make sure fuel is gettin to the carb 1st,, but u say u do eventually gettin it goin ,,then theres a blockage in jets ,,undu the bottom of the carb clean out the bowl, ,in the carb u will see a brass jet, un screw that and the needle guide that the jets screwed in to and using a pin or needle,poke the small hole clean so u can see light threw them,, bung it all back together and pray,, if no joy il get back to ,, ok m8, enjoy