Is the timing off on my 125 ATV if i get spark and gas and the gas is not firing?

Yes, if you're getting spark and fuel but the engine isn't firing, it could indicate a timing issue. The timing may be off, preventing the spark from igniting the fuel at the correct moment in the combustion cycle. Additionally, check for other potential issues such as a clogged carburetor, faulty ignition components, or low compression, as these could also prevent the engine from starting.