1. Brother can u guide which spark plugs are best to use what is the cost and from where we can get it.
- In tuning they just adjust tappets , clean spark plugs. Is it wise to tight/adjust tappets on every engine oil change or 2-3 months?
Does throttle body/carburettor is necessary to be opened or cleaned. I have seen workshop men just pore some chemicals in throttlebody and wait for 10 mins . After that starts the car and increase rpm. Some black smoke come out from silencer and after 3-5 mins the car emits clear exhaust /gases. Is this the rite procedure ?
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