I have civic 90 , which is converted on CNG 3 years back, from last two years no service...except change of air filter 3 -4 times and ones i changed the plugs.( in 2 year 20000 Kms)
Now the problem is that when its stop for several hours , on restart its going off and required accelater , after running of few Km's its ok, basicully its RPM is going up and down .
So any one tell me from where i can tune it..