I am doing a leak down test on my kawai 550 ('84 piston port) How many lbs should I put in and how long should it hold it? I have gone up to 12 psi thus far, and it loses the first 2 lbs in about 2 minutes, it hits zero after about 20 minutes. At what point should I be looking for leaks/will the ski not run well? Let me know asap.
300/440/550 leak down test?
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