I want to know that how much gaps should be adjusted for tappets, ignition point and spark plugs for different configurations.
CNG Only
Petrol Only
CNG + Petrol
also tell me that how much engine should be advanced for each configuration.
Thanks
Recommended tapet setting at filler guage is 0.20mm inlet valve and 0.25mm exhaust valve regardless of any fuel type, and most of the cars are advanced to 18 degree on cng from petrol which is 10 degree.