agree on the RVM. post 60-70 its just enough to figure out if there is any vehicle behind you. nothing more. and on my bike, the right RVM has more vibes than the left one. :\
oil leaking and other stuff are unfortunate. please visit a good ASC/mech to get the issues fixed.
also, you could ask them to take out the spark plugs and check for soot or whiteness. look for brake and gear lever tightness.




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