Pro Pp5020av 20-inch 50cc 2 Stroke Gas Powered Chain Saw…

I just replaced the fuel line and filter from inside the tank to the carb because the original line rotted and turned to mush. now the saw will not run, acting like it is fuel starved.
Experienced gardeners share their insights in answering this question :
Your carb is starving gas from your saw. You will have to remove the carb. and take it apart, check the diaphragms for hardening or splitting, clean all passages and screen. There is a lot of small parts that have to be put back together correctly, also the diaphragms and their gaskets have to be installed right.

.

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

The fuel line may be clogged from stale fuel deposits, more reasons to cause your chainsaw to cut out when applying throttle. If a fuel line is cracked, it will leak gasoline and draw air from outside into the fuel line. If the line is leaking fuel, it needs to be replaced.
Dirty Carburetor (air+fuel)

If fuel sits in the system for too long, the carburetor (and the engine and fuel lines) can become sticky and clog. Remove the air filter and spray the carburetor with carb cleaner—an aerosolized acetone spray made to remove the gunk.

If you have an electric chainsaw that won`t start, first make sure that the power cable is connected to the mains, then check whether the cable and plug are damaged. If they aren`t, the problem could lie in the motor which, for example, may have worn or damaged brushes.
The carburetor might be clogged. A clogged carburetor is often caused by leaving fuel in the chainsaw for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the chainsaw engine to stall.
A dirty carburetor, bad gasoline and low-quality two-stroke oil that creates deposits all contribute to chainsaw starting problems.
The most common cause of a chainsaw that won`t cut properly is a dull cutting chain. Try sharpening or replacing the chain. Need help finding your model number? The chain may not have the proper amount of tension.
2 stroke bogging before powerband

If the engine is bogging before it gets to the powerband, then the air-fuel mixture is most likely off. When the engine isn`t burning the proper amount of fuel and air, it won`t produce power and accelerate, giving you the annoying and dangerous “bog”.

The letters on the screws represent High (H), Low (L) and Idle (T). The H screw regulates the Air/Fuel mix during high RPMs, while the L Screw does the same during low RPMs. The T screw regulates how much fuel is sent to the carburettor while idling until the throttle is pressed.
Check the following: Clogged muffler, clogged exhaust port, fuel restrictions, low compression, poor ignition spark, too much oil in gas or improper air/fuel mixture in carburetor. . Clean carburetor jets and air filter. Check clutch gear wheel for worn or greasy clutch pads.
One tell-tale sign that a chainsaw has flooded is the smell of fresh petrol near the muffler. To ascertain whether this is indeed the problem, simply disassemble the part, pull the starter cord as if you were switching on the engine, then dry it, reassemble it and try switching it on again.
If the filter becomes clogged, not enough fuel will reach the engine for it to run properly. Because your chainsaw will idle, but dies when it is revved up to full power, it means that the filter is only partially clogged; it will allow enough fuel to the engine to run on idle, but not enough to sustain full throttle.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Will only start and run in choked position, when throttle applied chokes out. If started with out choke and throttle position in low speed will start and run for 10 sec then like it runs out of gas.
ANSWER : I have your solution guaranteed, I fixed mine yesturday remove H L screw plastic caps and on high 11 threads exposed and on the low side 8 threads exposed. removing the plastic caps allows u further adjusting these wear out or move soo just take them things off and you will be rolling

It’s brand new, when I finally get it started it will run good for about 1 min. or less, and then it dies. I pull the choke out all the way, pull it a couple of times, push it half way in, it starts but it’s like it doesn’t have the power to turn the chain, bogging out and then it dies, I will never buy another homelite product, or recommend anyone else to, this is my second one, the first one leaked gas, Home Depot really should quit selling them, there making you look bad too!!
ANSWER : Hi paulbonser… Set your point gap to .20 using a feeler gauge… You can also use a paper matchbook cover, it ia approx. .20 to set the gap on the points. Please take time tor rate me

Saw cranks and runs in choke but we the throttle is pressed the saw dies out… I repeated starting saw and got the same results, what can I do to fix the problem?
ANSWER : Its running lean, so we need to look at things that will starve the engine of fuel, it is always best to start with the simple inexpensive things first, remove the filter from the fuel tank, fitted to the fuel hose, and replace, check the fuel hoses from the tank up to the carb for signs of detirioration or leaks, there is also an internal filter in the carb, under the alloy pump cove held with a single screw, once all these things have been checked, you can make an adjustment to the carb if it is no better, unscrew the L and the H screw a quarter turn to richen the mixture.

Blower only runs with full choke. When I switch to half choke, it dies and won’t start.
ANSWER : It may simply need the high speed jet opening up a bit (2 screws near eachother on the carb and the high speed is furthest from the engine)failing that it needs a carb kit…. this is a serviceable item changed regularly.

Have to run on half choke,just stops if i turn it off.fuel is 25 to 1. thanks alan.
ANSWER : More than likely a small passage way in the carb is clogged. You can try some carb cleaner, but you may need to disassemble the carb and clean it out. Be advised that these passageways are sometimes as fine as a human hair, and almost impossible to clear sometimes. A new carb may be required if it is worth it to you. Sorry.

Starts on choke and continues to run. When choke is turned off , it tries to run faster then dies. Possible fuel obstruction?
ANSWER : Hello,

You have a fuel restriction for sure, have you replaced the fuel filter yet?

My mantis will not stay running unless the choke is full on
ANSWER : Sounds like the fuel pump diaphram in the carb. you need to either be familar with it or take it to thae shop to replace

Starts right up on choke. then run inrun position for a minute and have to go back to choke to keep it running ,then it runs fine for a couple of minutes and have to go back to choke and start all over again.
ANSWER : This happens with the cover off, so not the filter.