I just bought a 1985 atc110. It was a weak runner with a worn clutch. I bought a new carb from ebay, new timing chain and new clutch. I installed these and it was now a weak starting decent runner with a great clutch. I then tore down the topend cleaned and laped the valves. it now has 150psi compression and good spark and wont run at all. everything is connected and in good condition from snorkel to muffler. I set the valve timing to the t mark and ignition timing to the f mark. the stator reads 140 ohms and ignition pulser is 90 ohms. Spark is nice and blue on a fresh plug. It will back fire once in a while thru the carb but thats it (even with ether). This bike looks great and should run great but.... Any Ideas? I've quadrouple checked the valve and ignition timing. Could the cdi be failing?
also it has 2 fuel filters and a screen in the petcock. jets are 85 main and 35 pilot
