The prime bulb is failing or clogged. Try priming it 10x before trying to start it. Bad gas / tank is has gunk build up. What I would suggest is go to lowes/home depot and buy a can of 50:1 can of gas, and the 2 stroke gas cleaner.
What makes a chainsaw hard to start?
The chainsaw’s engine is flooded with fuel.
A fuel issue is one of the most common reasons why a chainsaw won’t start. If the operator has repeatedly been trying to start the chainsaw through the recoil starter system, they may have accidentally flooded the engine with fuel.
What causes vapor lock in a chainsaw?
Vapor lock occurs when the fuel (usually gasoline) within the fuel delivery system overheats and vaporizes too rapidly. The resulting excess gas bubbles accumulate to the point of actually blocking normal fuel delivery.
Why does my chainsaw only run with the choke on?
When your chainsaw only runs if the choke is on the problem, in most cases, is a result of fuel supply problems or a faulty carburetor. To fix the problem you should check and clean the fuel system and carburator.
How do I get my chainsaw to start every time?
Activate the choke by moving the lever to the full choke position and pull the starter rope 3 or 4 times to start the engine. If that doesn’t work, move the choke lever to half choke and pull the starter rope, 6 times maximum, to start the engine.
What are signs of vapor lock?
Vapor lock causes:
- Loss of fuel pressure (and flow)
- Loss of power.
- Stalling.
- Difficulty restarting the engine.
Why does my chainsaw start and then stop?
Quote from the video:
Quote from Youtube video: Over time the arrestor can become clogged with soot which may cause the chainsaw engine to stall. You can try cleaning the arrestor with a wire brush. But you may need to replace it with a new one.
How do you Unflood a chainsaw?
Quote from the video:
Quote from Youtube video: So put it in the run position. And we're gonna hold that trigger wide-open as if it's running full speed. Now that carburetor is wide open from both ends of that carburetor.
Do you start a chainsaw with the brake on?
When using a chainsaw, you should always start it with the chain brake engaged so the chain does not move.
How do you prime a chainsaw?
Quote from the video:
Quote from Youtube video: We're gonna make the return line first cut the fuel line at a very steep angle the steeper the better and then put it into the right side hole as far as you can go. Then use some bent long nosed
Why is my chainsaw not getting gas?
If your chain saw isn’t getting gas, the trouble most likely lies in one of those three core components: the fuel tank, the spark plug or the carburetor, or one of the minor parts adjacent to the three.
Can you bypass a primer bulb on a chainsaw?
Simply put, a primer bulb controls how much fuel will enter the carburetor. That’s why it can’t be bypassed and must be replaced. In most cases, it has to be pressed a set number of times. It then starts the engine and allows a certain amount of fuel to enter the carburetor.
Do Stihl chainsaws have a primer bulb?
Re: What chainsaw compable to a Stihl MS 260 PRO has a primer bulb and starts easil. FWIW on most saws it takes about 6 to 8 pulls just to get the gas from the tank to the carb if they have sat for a spell . Just the nature of a diaphragm carb .
What does a purge bulb do?
The purge bulb, used on many of today’s two stroke outdoor power equipment engines, is designed to circulate fuel through the carburetor, removing air and allowing the carburetor to have a fresh fuel charge before attempting to start the equipment thereby aiding startup.
Do you need a primer bulb?
A primer bulb is important because it is helps to fill the carburetor with the correct amount of fuel. It does this by pulling fuel through the fuel line. You may need to fix or replace your primer bulb if: It is not creating proper suction.
Does a Stihl chainsaw have a fuel pump?
Convenience at the touch of a button
A manual fuel pump makes it easier to start STIHL chain saws and power tools and reduces the number of pulls required.
How does a chainsaw Carby work?
The carb is operating “normally” at full throttle. In this case, the throttle plate is parallel to the length of the tube, allowing maximum air to flow through the carb. The air flow creates a nice vacuum in the venturi, and this vacuum draws in a metered amount of fuel through the jet.
How much does it cost to service a Stihl chainsaw?
– Zero-Turn Service: General service labor is $89.50 plus parts. Stihl Blower Service: General STIHL blower service is $49.50 labor plus parts. Stihl Chainsaw Service: We only service STIHL chainsaws. General service is $49.50 labor plus parts.
