Even if the mechanic tighten the valves, the noise will not go away

as far as i know this noise is generated due to high lift cam with higher compression (more higher lifted compared to earlier hunk/xtreme) hence i can safely assume that noise is generated from a healthy engine. only way to get that noise away is to install 14.4 ps xtreme's cam but power will also go down.
But yes these kind of noise is not expected from HERO.



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