REMARKS :
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-Use adjustable sprocket "THO025" to disable the intake VVT system
-Check interference between cam and rocker arm, modify rocker arm if required
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This engine is very sensitive on valve clearance. A valve clearance that is too big will result in poor performance, damage to valve and valve seat, and ultimately possible breaking of the valve.
The optimum cold setting is usually around 0.20mm (intake-exhaust). Don't exceed the valve clearance data as indicated in the Honda workshop manual.
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ECU reprogramming advised