valve tunning

[samuely55]

Does anybody know the correct gapping for tuning (that is the intake valves and exhaust valves)? Also, the correct gap of spark plugs.
I just wanted to tune my Renault 4 so that I may be successful to avoid black smoke coming out when the engine is accelerated.
Thanks.

 

[angel]

Inlet valves:0,006"
Exhaust valves:0,008"
Engine must be cold.

Spark plug gap:0,021-0,025" - I set them to 0,024"
Plug type:Champion L87YC (845cc) or L92YC (1108cc) or equivalent-this is important!

 

[samuely55]

can u also tell me the procedure to make the valve tuning?
I really apprciate ur help.