my chainsaw is _exceedingly_
hard to start, I'm near pulling my arms
right out of their dern sockets...
saw has excellent compression. also has _brand new bosch spark plug,
correct plug # correctly gapped, & plug is "known to be firing"
(removed plug, ran ground wire to muffler, watched and pulled), carb
is freshly rebuilt, fuel pickup clean as a whistle, fuel is one day
old, of the correct octane and oil-mix, using 2 stroke good oil. saw
gets gas, as proven by 'gas smell' and look at plug removed during my
numerous "pull-fests". saw won't even fire a LICK usually, meaning
99.99999 percent of the time, even if I use ether. not even a quick,
weak 'pop pop'....
in desperation, I even built a crude 'pre-heat' chamber for the saw
out of old plywood, ran a small electric room heater into one end for
a half hour - "heat-soaked" the entire saw up to a hundred degrees,
which didn't even help. air cleaner clean as a whistle. the 'one turn'
carb adjusting screw IS correctly at its 'one turn' setting, and the
other one, is at, well, wherever it was? (moving it seems to change
the saw from 'super-hard starting' to 'super-hard starting' and back
the stihl owners manual is 'very foggy' on how to set the carb
adjusting screws, especially in relation to each other (but his seems
to matter). when I _did_
finally get it running yesterday, after its'
traditional sixteen million arm-wrenching pulls, it ran kinda lousy -
had to keep 'revving it' between cuts...wouldn't idle, even after
being warmed up and making some cuts...
what to do next? anybody care to suggest an 'initial setting' the 'low
speed' screw should be at? and why does moving THAT screw seem to make
adjusting the other one imperative? near as I can determine, it's only
a "throttle stop" of sorts (it keeps the throttle plate from closing
'dead shut' completely).
ps-the blade stays in motion, but 'weakly', between cuts (I couldn't
care LESS about that at this point, though). when I 'rest the blade'
on a log, when it's 'near idle', the blade stops...so, big deal! I
just wanna be able to make CUTS-I don't care if the blades in motion
between cuts or NOT, at this point...
um, what controls the timing on these saws? I'm guessing it's 'fixed'
(or is it?). the sparks the plug made during it's 'removed visual'
test were tiny, blue, or blue-white...
grateful for any troubleshooting tips & ideas/thanks :-)