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top end noise

  1. NG900 & OG9-3 Workshop
    Hi. i have a 1997 900s. a few months ago i started hearing a top end ticking noise. so i replaced the lifters... still there, so i cleaned the oil ports in the head and checked the oil pump. they were fine and noise is still there. i dropped the oil pan and cleaned the sump filter. noise is...
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