With the engine at TOP DEAD CENTER (TDC) Adjust the exhuast valve to .007 and the intake to .005.
yes
Need to get your valves adjusted
valve settings on a 2008 yamaha ttr 125
With great difficulty
http://www.centuryperformance.com/valveadjustment.asp
on a 350 engine to adjust valves tighten them down with engine running then back them off until it smooths out probably about a quarter of a turn
probably need to adjust your valves
rev box ...big bore...air filter ...exhaust ...better valves and cams
You can adjust tapping valves by adjusting the lifters.
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