sambo13 Posted February 11, 2023 Report Share Posted February 11, 2023 I have a 2001 Yamaha banshee I just did a fresh rebuild wise cold pistons it's all stock but was bored over to the next oversized piston cylinder sleeved in honed by LA sleeve just did a compression test bike hasn't been broken in yet but it's showing 90 psi on each cylinder is this correct for this altitude Quote Link to comment Share on other sites More sharing options...
specialblend07 Posted February 15, 2023 Report Share Posted February 15, 2023 Probably normal at that altitude Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted February 15, 2023 Report Share Posted February 15, 2023 What size domes? If they’re 22-23 then that’s likely normal at that elevation. If you want more compression, swap domes. Quote Link to comment Share on other sites More sharing options...
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