Chaparral 2012 SSi, Operator'S Manual, Page: 85 / 113

7-6
PROBLEM CAUSE SOLUTION
Poor Performance
Vibration
1. Damaged or improper propeller
2. Excessive water in bilge area
3. Boat overloaded or improper distribution
of load
4. Fouled or damaged hull bottom
1. Loose engine mounting bolts
2. Damaged propeller shaft
3. Propeller bent or pitch out of true
4. Engine out of alignment
1. Inspect propeller and replace if required.
2. Pump out bilge area. Inspect for causes
related to excess water.
3. Reduce load or redistribute load.
4. Inspect, clean, or repair as required.
1. Inspect and tighten as required.
2. Replace shaft.
3. Inspect propeller and replace as
required.
4. See Engine Owner/Service Manual.