Doc, I am confused on what you are saying about the carb. Are you saying you cannot make the saw rich enough for your liking?
It's odd Joey. I planned on a fuel line change as i gouged the new OEM one on assembly, but I pressure and Vac checked it before use.
The saw wont hold High tune piss revving. It will go to a certain rpm for a second or two, then scream. But this is tunable, if I richen it up, it will do the same, but increase in rpm to a lower point.
In the vid, I set it to 13800. If I held it, it would stay there for 1-2 sec, then steadily rise to 14600 and stay there. If I tune the H to temporarily hit 14500, the saw will maintain for a second, then scream-I et off the trigger at 15800 and it was still 4 stroking then.
At richer/lower settings, it will jump in rpm and then stay there. At leaner/faster settings, I had to let off the trigger cause its a new build and just kept climbing.
So, I first swapped choke shafts and put in a new HD50 from the box. No change.
Next, I drilled the jet in the 17b with a #70 bit. Same deal.
Next, raised metering lever around .050 over flush. Idle isues, saw seemed fatter, same deal again.
The H needle was only 3/4 out at that point, so its not the jetting.
I just dont know if the big chamber with the sharp edges is taking longer to heat up?
The two sharpest edges by the plug opening arent in reality, because they touch the plug when it's in.
Next plan is reset the Metering lever around .010 over flush, check the 17b carb screen, replace the line and filter.
I will pull the jug and blend after. Too much at once won't teach me anything.
It's frustrating to say the least.
