Okay on 2-stroke engines you are going to have 2 idle screws. (If you do turn screws, remember how much, so you can turn them back if you need to.)
Remove the plastic housing/cover of your chainsaw (if you cannot do this then you probably don't want to go any futher.)
Locate the Carburator, and there will be 2 tiny adjustment screws, you can tell it is an ajustment screw because it usually will have a spring on it to keep it from vibrating out.
One of these screws will have the letter "L" and one will have the letter "H"
which simply means "L"ow idle and "H"igh idle.
Crank the saw and without hitting the throttle (if it will stay running) adjust the "L" screw until desired idle is reached.
Now if you ever need to adjust the High end Idle you can just crank the saw and then with the throttle trigger on full throttle adjust the "H" screw to desired high end.
Note that your carburetor is clean though and good clean fuel is getting to it because a saw that has been stored or just not run in a while or some trash in the carburetor can give you nightmares when trying to adjust the settings and it still wont be running efficiently.
My rule of thumb is: If it has ran good in the past then it probably doesnt need adjusting now. Look for another reason such as Bad/dirty fuel Dirty/trash in the carburetor, fuel line/filter problems etc.
If the carb is dirty and you adjust it to run, then you are just choking it down so it will suck more fuel (because it wasnt getting enough fuel to run) having to compensate for poor air fuel ratio and then you are not getting enough air. The mixture has to be correct for the engine to run efficiently.
56.5cc, 3.0kw, 4.1hp, 13000 RPM.
press the moo button
The difference is in the motor size.The 034AV is 56.5cc (cubic centimeters) and the 034 Super is 61.5 cc (cubic centimeters). The 034 Super has a slightly larger motor, and therefore it presumably also has greater speed and power.
I have an 034AV Super and it came stock with a 20" bar. An 034 isn't quite as powerful (56.5cc vs 61.5cc), but a 20" bar should still work great on it.
The 034 takes either a .325" or 3/8" pitch chain. My guess would be 3/8 .050 go to chainsdirect on eBay chose the chain for youre bar size.
1990
year introduced: 1993 displacement: 61.5ccm (3.75ci) 48mm bore 34mm stroke electronic igintion Adjustable bar oiler Anti- vibration suspension
The Stihl 034 AV is a reliable saw that has done satisfactory work on trees up to 20 or 25 metres tall with a considerable diameter. Never had any problems with it.
~3.48 Cubic Inches (57cc)
It stands for Anti-Vibration. I have two Stihl saws made in the 80's (an 015AV and an 034AVSuper). The 034 replaced a really old 041 without the AV, so I can attest that it really makes using the saws a lot more comfortable if you plan on using it for more than an hour or so at once. But then again, all the new Stihl saws have the AV now :o)
Stihl has only grudgingly ever published HP figures, for a long time they were only in the kW ratings indicative of Europe. The machine has approximately 4 HP.
I have an 034AV Super. The owner's manual (21 years old) recommends 50:1 if you use Stihl-brand oil, 25:1 if you use a different brand. There have been lots of advances in oil over the last 20 years, I use a different brand of oil and I never run it richer than 40:1. A good rule of thumb: your engine (they didn't make 034's after 1993) should only smoke a tiiiiiny bit when warm. If it smokes more, than you're running it too rich.