The compressors are probably the most problematic item on the Optimax. They can fail with no warning. But, when they do, you have to change out all 6 plugs, and sometimes, an injector. If you want to keep your compressor from qitting on you, there is way. It requires the lower cowling to be removed. On the port side of the motor, there is a plastic filter that screws into the lower part of the head. This filter, if clogged, will shorten your compressor life span. If you stay out of the shallows, you shouldn't have a problem. Like Montauk stated, shells and grasses can cause the compressor to overheat and fail. It's our biggest problem at the lodge, along with lower units.
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