This looks like for newgen
Link to original page on YouTube.
but 125 seems low. @ZacharyB may be on to something, How many miles on the bike? If you take the compression tester and if the type is the quick disconnect type, plug that to an air compressor. then you can bring the piston to TDC on the compression stroke, if you hear air coming out the exhaust- then look at those valves, if out the carbs then look at the intakes. If out the crank vent then piston or rings.
Drop a bit of oil down the spark plug hole- see if psi goes way up. - bad rings.
Hope it's just the valve adjustments are off