Smoke on petrol but NOT on CNG!!

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Smoke on petrol but NOT on CNG!!

Hello everyone,
i bought a cultus 2003 which is driven approx 100k, the owner says that this car has not been driven on petrol since 1 year but on cng, and when i noticed the switch of petrol was not working, i got it fixed and then when i filled the petrol and started, it started throwing so much smoke , like very stinky smell, not usual ones.... but on cng i am driving it since a month its releasing water from silencer and no missings and no engine noise .... i mean on CNG there is no smoke and pick is v gud as well..but when i turn it to petrol...it throw blue/white smoke for some moments and then its fine....

is it coz of dusty carbo? or any thing else?

Gari.pk User 11473 asked on 24 Nov 2010 10:10:50 am

1 Answer

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Anas - on 24 Nov 2010 10:11:02 am

well simply get new plugs clean carb clean distributor point and then notice if it still messes then advance timing a bit and adjust race also check it fuel pump mite be out coz not has been used since get it fixed or better use electronic 1