A 550mk2 does the same thing to my fast tach as well. I didn’t pay much attention to it cause like you I figured it was the rev limiter messing with it. I was able to get a more consistent reading once I put it in wood.
I beg the differ with you sir. As a full time sawyer, max rpm matters a lot for limbing timber, which in my line of work takes up to half a days worth of sawing.....just cutting limbs off
Swapping the 12.8 coil to the 13.5 on my 7310 didn’t really increase power or anything. But it sure made topping trees I felled smoother/more efficient. We have a harvester so I don’t limb as much anymore… but I still cut up the tops of the larger hardwoods that it can’t process.
7310 Dolmar or echo?
Got no problems with that.
Wow, my gauge doesn't have the valve in the adapter, just where the adapter connects to 14mm, and I read over 70 psi less on a high compression 2511 when hot. A few drops of oil in a cold cylinder will get it much closer to 200 on my gauge. I recently test ran a 2511 I ported with less compression than another I was comparing to, and it was a little faster. I kept the compression on the low side because the repeat customer liked their first one so much, which wasn't very high. Seemed like the right move according to the cut times. The higher compression one felt like it pulled harder and was overall faster, but was consistently 2 seconds or more slower.
