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  1. #1

    2003 Ultra 150 Comperssion ????

    I am looking at an 2003 Ultra 150 with about 40 Hrs on it. The manual says
    the compression should be @ 98 psi to 150psi. All three cyls were 105 psi
    using a Snap-on tester. This is on the low end of the range. Any body
    have any experience with this .Thanks


  2. #2
    steve45's Avatar
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    Compression will be lower at higher elevations. Also, the throttle should be open and the battery needs to be in good condition. It's more important that the readings be pretty close between cylinders than the actual value.

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