Starts fine but as I go to cut and apply the throttle it will run for a second or two then just cuts out
Experienced gardeners share their insights in answering this question :
Sounds like “gum” and”varnish” build-up in the TINY passages [called “galleries”] inside the carburetor.

The fix is:

Replace the carb [VERY EXPENSIVE!], or
Remove and overhaul carb [less expensive, but a pain in the a$$]
Try one of the relatively new “in-the-tank” solvent cleaner kits available at most auto parts stores.

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 two most common reasons a chainsaw won`t idle are a blocked air filter and an idle screw out of adjustment. Other possible causes include: Dirty Air Filter. Idle Screw out of Adjustment.
Today, McCulloch offers a complete line of garden products: powerful chainsaws, sturdy trimmers, lawnmowers, garden tractors and hedge trimmers.
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.
Since then McCulloch has been a brand within the Husqvarna group. The knowledge and experience gained from the Husqvarna group is very evident in this quality range which also offers excellent value for money.
In 1999 McCulloch sold its European division to Husqvarna AB. Nine years later, Husqvarna also acquired the rights to the McCulloch brand on the North American market. Since then, McCulloch is a brand within the Husqvarna Group.
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.
Check your air filter. A dirty air filter can affect your gas chainsaw`s ability to cut. Issues like low power, poor performance or if the engine`s stalling during cutting could all be signs you need to clean it. Follow the owner manual guidelines for maintenance.
If your saw idles fine, and then bogs down when pressing the throttle, then adjust your `H` screw by unscrewing. This will increase the amount of fuel to the carburetor under load. If your saw idles fine, then runs lumpy with a lot of smoke when pressing the throttle, then adjust your `H` screw by screwing in.
Generally, two-stroke chainsaw engines are built to conveniently run at full throttle without an engine breakdown. Therefore, running at any throttle speed below the full throttle is not advised. Cutting a thick wood or timber while running at a low speed or throttle can cause the blades of the chainsaw to become dull.
Black and Decker bought McCulloch on 4 October 1974, and sold the company to a private group in November 1984. In January 1999, the company filed for Chapter 11 bankruptcy and sold its European division to Husqvarna AB.
McCulloch is proud to now be a part of the Husqvarna Group. Years of experience and innovation are now supported by a trusted leader in manufacturing power equipment. Their snow blowers continue to feature high quality construction, and are also backed by a 2 Year Limited Residential Warranty.
The world`s most powerful production chainsaw. A direct replacement of the MS 880, the MS 881 is the most powerful chainsaw in the market with the highest displacement (121.6 cc) and engine power (6.4 kW).
Which is best? Well both performed really well with the Stihl able to cut a lot more discs, however the Makita is significantly cheaper and in our test had a lower capacity battery.
The Husqvarna Group (Swedish pronunciation: [ˈhʉ̂ːsˌkvɑːɳa ˈɡruːp]) is a Swedish manufacturer of outdoor power products including robotic lawn mowers, chainsaws, trimmers, brushcutters, cultivators, and garden tractors.
The first Husqvarna factory is established by the waterfalls in the town of Huskvarna in southern Sweden (previously spelled Husqvarna) to manufacture weapons for the army.
In the case that your chainsaw runs for a while, then dies, it may be possible to simply clean the air filter to correct this symptom. However, a damaged air filter should be replaced. Regular checks of the air filter for buildup should be part of your regular chainsaw maintenance routine.
STIHL currently recommends that you do not store or use fuel older than 60 days, and preferably no longer than 30 days, even with a stabilizer. Read more about storing your outdoor power equipment.
A dirty carburetor, bad gasoline and low-quality two-stroke oil that creates deposits all contribute to chainsaw starting problems.
There are several reasons the Chevy 350 bogs on acceleration, including problems with the ignition system, fuel pump, air filter, catalytic converter, or muffler. The most common cause is that your Chevy 350`s fuel filter is clogged or the pump isn`t working properly.
The carburetor might need to be replaced.

It could be damaged or old and no longer functioning. To test the carburetor, remove the air filter, pour a teaspoon of fuel into it, and pull the starter rope. If the engine starts momentarily and then dies, the carburetor is likely why the chainsaw won`t start.

It may be due to the fact that the chain cuts at an angle, is badly sharpened, incorrectly tensioned, or not sufficiently lubricated. Uneven wear of the guide bar in turn causes the chain to rotate at an angle rather than aligned with the bar, creating a vicious circle of wear.
This most commonly is a result of a dull chain and exerting to much pressure on the bar and chain trying to make the chain saw cut. This could also be either a lack of bar and chain oil ( tank empty, restricted oiler hole ) or an inferior type of oil that is being slung off the chain and not lubricating.
Once the user throttles the saw, the centrifugal force overcomes the springs and the shoes move out. At a certain speed (approximately 3000 rpm) the clutch shoes engage with the inside of the sprocket and the sprocket begins to turn.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Does not run, will start with starting fluid – Mantis 2-Cycle Tiller
ANSWER : You should never use starting fluid on this model.

Add a couple of ounces of 100% acetone (available at Walmart) to some fresh fuel. Attempt to start for several pulls. Let sit for several minutes and repeat until it sounds like it wants to run.

Then watch this video and do it:

Read Full Q/A … : McCulloch

McCulloch 3200 hard to start, I think spark is weak. Like new.
ANSWER : It sounds like the coil is bad.Thanks for asking and I hope it helps

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McCullough chainsaw won't start – McCulloch Quality Mcc1435a 14" Gas 35cc 2 Cycle Chainsaw Full Warranty
ANSWER : If it’s a old saw..The seal goes out on the crank next to the clutch,it’s called a grease seal, it loses the suction needed to pull fuel in to the engine, can be a tricky one to replace, but will spark a old saw back to life. You may want to replace both crankshaft seals ..First try a few drops of gas down the carb, if it pops off you know it’s a fuel issue

Read Full Q/A … : McCulloch

Will only run on choke – McCulloch 16 Inch Gas Chain Saw MCC1635AK
ANSWER : Its running too lean, start with easy stuff first, replace the fuel filter in the tank, check the condition of the fuel hose up to the carb, any signs of damage or leak, then replace.

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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

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Weed eater starts but won't stay running – Weedeater 19 in 25cc Gas Hedge Trimmer
ANSWER : Probably “gum” and “varnish” build-up clogging the TINY passages [called ‘galleries”] inside the carb!

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Don’t know the model number, but its a eager
ANSWER : Here is a Link to my Tip(s) on this

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Mb 3200 gas leaf blower will start when choke
ANSWER : The carburetor could need rebuilding or you have some bad gas. I would mix up some 2 cycle oil and fresh gas from the station. I would try the new fuel mixture first.Good Day.

Read Full Q/A … : McCulloch