[Jason Tretteen]

I have a 70cc four wheeler that used to run like a top. It started running a little rough so I cleaned the carburetor. It ran the same after that, rough. Then it just stopped running. I have replaced the CID box, ignition coil, air intake, spark plug, and carburetor. It is getting spark, it is getting fuel (spark plug is wet), sprayed starter fluid in the intake, checked the jets, they are clean, checked the timing, checked the kill switch. I am purchasing a compression gauge tomorrow even though I feel like it would run with low compression. I am out of ideas. Help?

 

[retro]

Check compression and if it is low check the cam chain timing to see if it jumped. Also adjust the valves before going any further. Replace the spark plug with an NGK if the compression is measured within specs.

I assume all of the new parts you put on the bike were OEM Honda? If any of them are china knockoffs the OEMs will need to be put back on it.

Welcome to the forums!