happed 2 days ago... before that the car had been working fine on petrol and Cng... upto about 3.4k rpm... after which the car wouldnt rev more on petrol.
the car started missing and jerking on petrol.. so went to mechanic... tried tuning but made no difference.. so took apart the carburetor... came accross some blocked holes and jets... set every thing ok and fitted back no difference...
car is running rich... it wont pick up revs.. sounds like kay gala ghota ja raha hai... and when forced to rev high it throws sprays of petrol out of the carburetor...
CNG is fine..
mechanic says it may be a case of leaking head valves..
about 4~5k kharcha...
yes my car give plenty of white smoke. but on petrol.. spark plugs were very black..
on low rpms car give blackish smoke.. it revs to max of 2.5k rpm on petrol on full throttle...
what can be the problem?
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