AOA. my cultus VXR, when started on petrol gives black smoke for 1-2 minutes.During this period if i leave foot from accelerator paddle, it shuts down.If i force to maintain rpm at 1000 by holding accelerator paddle following observations are seen.
1-it seems there is no power.
2-one piston is working (by removing two plug wires no effect, when third one is removed engine shuts down)
3-exhaust supply is interrupted (keeps on missing after 1-2 seconds)
What i do is that i keep it at 3000 rpm, it feels like something is being filled and after 2 minutes it behaves normally.Black smoke gone and rpm stable at 1000, starting on half self. I have to repeat this process whenever i start it on petrol after 4-5 hours
On cng no problem
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