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????
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????