I have stihl pole saw-the primer ball was cracked and machine would't start-used duct tape-got it running fine-replaced primer ball-cleaned carb-everything replaced properly--will not start-tries to fire-seems like it's not getting enough fuel--what did i do wrong
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By your description it is running only on the fuel available from being primed. So likely carburetor impulse air or diaphragm (carb rebuild or replace).
Bought brand new! I saved up for this product for awhile since they are pretty pricey. I also own acreage in the Midwest so this tool is much needed. I owe 2 older stihl chainsaws and fs70 trimmer. I work sometimes 70-80 hours a week so anytime I have on the weekends to clean up tree damage from storms, etc is precious.
More details about the best pole saw go to the link The Best Pole Saw In 2018 Practical Overview of Top Pole Saws
Priming may not be the problem. First try putting some duct tape over the hole in the primer button. then try priming and subsequently starting it. This could indicate a need for a new air filter...I know it doesn't make sense, but it will probably be the answer to your problem. It was with mine although a different type of mower.
If you mean the engine is losing power your more than likely have a restriction in the exhaust. The sut from the two stroke mix builds up and restricts the exhaust gases. Hence looses power. Happened to me lots of times
If you must choke it for it to run it is lean. Have you attempted a carburetor adjustment? Start with "H" and "L" at 1.5 CCW from lightly seated. Then try this: Carburetor Adjustment by Madsens.com http://www.madsens1.com/saw%20carb%20tune.htm CW is leaner; to lean will destroy the saw. If over tightened closed (CW) the adjustment screw faces are easily marred; marred adjustments are difficult to impossible to set properly. Clean the air filter; adjusting with a dirty filter can cause a run lean condition once cleaned and the saw run. There are 2 wav (sound - idle & full – not highlighted) files that I find most helpful, I think you will too.
An air leak where the carburetor bolts to the engine or the intake manifold can also cause this. If an adjustment does not or has not fixed this I suggest you try your friendly neighborhood Stihl shop. Explain everything you have done to a mechanic there. Good saw shops pressure test the crankcase, fuel lines, and intakes. They have test equipment homeowners do not. Explain what you have already done and ask for a repair estimate. I think you will be pleasantly surprised. Not all small engine mechanics are created equal... why I recommend Stihl. The odds of finding a good mechanic at a certified Stihl shop are in your favor. If not already using 50:1 fuel mix, please ask the Stihl shop what they recommend. Echo on their site has a statement equivalent to "regardless of what your manual says use 50:1". HTH
Lou
I'm so confused. This is reported as a Poulan and McCulloch pole saw, which one? Is it a pole saw? That is the only 445 Poulan I can find. It is reported as an electric but has a fuel routing problem.
If it is a Poulan Pro gas pole saw it is here: PP445 Gas Pole Pruner
The fuel system routing is terrible, but it is all there is.
Fuel Routing follows:
Tank to carburetor (hose in tank with filter on free end)
Carburetor to primer (primer draws fuel from the tank through the carb)
Primer to fuel tank (returns any excess fuel to tank when pushed) HTH
Lou
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