Propper method so GAS does not give false readings!
Check engine compression with engine at normal operating temperature, all spark plugs removed (on
dual plugs, remove exhaust side only), and throttle wide open. Ensure crankcase is full and oil is of
correct viscosity. With compression gauge installed, use remote starter switch to crank engine.
Crank engine at least 5 revolutions, and record highest reading. Repeat procedure for all cylinders,
using approximately same number of revolutions. Lowest compression reading should not be less
than 75 percent of highest compression reading. No cylinder compression reading should be less than
100 psi (7 kg/cm2 ).
DO NOT use ignition switch to crank engine. Fuel injection and coils
will activate and may cause damage.
Tuesday, March 15th, 2011 AT 8:50 PM