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Chainsaw
RPM's......How much is too much after muffler mod????
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<blockquote data-quote="RED WOOD" data-source="post: 4315894" data-attributes="member: 96498"><p>I picked up a Trail Tech tach/hour meter and hooked it up to my MM'd MS 290. After I got it warmed up I held it WOT for a few seconds to see how many RPM's it was running and the tach read 13,950. Stock max. rpm is 12,500. It have been running it like this for a while and it seems to be 4-stroking at WOT but is this too many RPM's for this saw to take?? </p><p></p><p>On a separate note I hooked the tach up to my stock Huskvarna 450 and checked it out and the top RPM is 12,480. Looked in the owners manual and it doesn't show a max rpm only max power RPM of 9000. Does anyone know what the max RPM should be for this saw????</p></blockquote><p></p>
[QUOTE="RED WOOD, post: 4315894, member: 96498"] I picked up a Trail Tech tach/hour meter and hooked it up to my MM'd MS 290. After I got it warmed up I held it WOT for a few seconds to see how many RPM's it was running and the tach read 13,950. Stock max. rpm is 12,500. It have been running it like this for a while and it seems to be 4-stroking at WOT but is this too many RPM's for this saw to take?? On a separate note I hooked the tach up to my stock Huskvarna 450 and checked it out and the top RPM is 12,480. Looked in the owners manual and it doesn't show a max rpm only max power RPM of 9000. Does anyone know what the max RPM should be for this saw???? [/QUOTE]
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