Thanks . Here are the details of the job.
The crank journal clearance was set to 0.10mm which is optimal for oil to lubricate without giving rattle even at high RPMs.
The cylinder surface was well polished to maximize the life of Rings as the first set usually wear out sooner coz of rough cylinder surface after bore.
The piston to cylinder clearance was 0.20mm which was also the gap between the two ends of 2nd compression ring.
I didnt knew the straw method was in the text book , i saw a German guy who was our neighbor using that in his Citroen when i was in saudia in early 90s.
valve seats are quite thick and the contact sound is quite solid & low and not metallic.
I hope I did it right, what do u think?
Also please post more tips (totkas) regarding maintenance and service of our local suzuki running on CNG so they dont die half way through 100K mark.