Automobile Engineering in ME
The correct way to rectify an imbalanced wheel is to

Rotate the tyres
Adjust the damper spring tension
Attach appropriate weights to the wheel at appropriate positions
Adjust the tyre pressure

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Automobile Engineering in ME
The crankcase dilution means

Dilution of fuel in the crankcase
Dilution of mixture passing through crankcase in two stroke engines
Dilution of oil by water in the crankcase
Dilution of lubrication oil by fuel in the crankcase D. Dilution

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