How Much Compression Should A 4 Stroke Have?
How Much Compression Should A 4 Stroke Have? What Outboard Compression Test Results Mean. Results vary depending on whether the outboard is a Four-Stroke or a Two-Stroke. Good results for Four-Strokes should be 180-210 PSI, and Two-Strokes should be around 110-130 PSI. How much compression should a 250 4 stroke engine have? The ideal pressures … Continue reading How Much Compression Should A 4 Stroke Have?
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