I have a chainsaw that I was ready to throw away because it wouldn't start when hot. Relieve the vapor lock by tipping the chain saw on its side and loosening the gas tank cap. Its side-mounted tension controls allow adjustment while in use. Husqvarna Chainsaw Repair Service WorkShop Manual 340 345 346XP 350 351 353; Husqvarna Chainsaw Workshop Service Repair Manual for model 181 Huskvarna chain saw husqvarna l 65, 77l, 181,185, 281, 285, 288, 298, 394, 1100, 2100, 2101, jonsered 2094, 2095 oregon 3/8 8 tooth clutch drum sprocket assembly 22132x. Chainsaw Vapor Lock, 2014. (2 pages) "While troubleshooting the problem, the crew member held the saw at waist height and opened the saw's fuel cap. Estimate where the very top of the tree will land on the ground and plant a stake there. Similarly, vapor lock can cause fuel delivery problems that lead to incomplete combustion inside of the engine. Misfiring and Rough Running. Check for this problem the next time your saw dies when it's hot. Firmly hold the lever used to start the engine to the handle of the lawn mower. - shut her off. Next time, take the fuel cap off and see if the gas is bubbling like boiling water. For the past few years, I have had vapor lock conditions on some of my trimmer motors and chainsaws. When shopping for chainsaw engine oil, you may notice that some brands cost more than others. In most cases, opening the fuel tank's cap allows the vapors to escape into the environment. Good instructions. Fuel geysers have resulted in injury . A severe kickback is the most dangerous hazard of all for a chainsaw operator. The fuel ignited and "flashed" causing minor burns to the sawyer's right arm, right side of neck . Application of an additional cooling means including airflow and liquid fuel means, may be provided in . If the equipment is running poorly or vapor lock is suspected: . Feb 5, 2018 - View Stihl MS 271 Chainsaw (MS271) Parts Diagram , Cylinder to easily locate and buy the spares that fit this machine. Use fresh gas. An apparatus for reducing or eliminating the occurrence of vapor lock in two-cycle engines isolates the fuel pump from the heat radiating engine block in a two-cycle, air cooled engine spaces the fuel pump from the carburetor and injects the fuel directly against the carburetor inlet valve. EA6100P EA6101P . - refuel bar oil and fuel. The wildland fire environment is full of hazards, and with COVID-19 on folks' minds, it's especially important to remain vigilant to the "normal" hazards, including fuel geysering. This was common for the old Homelites like the Xl12, Xl Auto, or Super EZ Auto. Poor engine performance, loss of power, overheating, fuel vapor lock, improper clutch engagement, premature deterioration of fuel lines, premature deterioration of gaskets, premature deterioration of carburetors. I cut up some fire wood with my chain saw last week and had problems with re-starting it after it warmed up. While this oil is all basically the same, Egelhoff highlights the importance of buying a product you can trust. That is like 5 minutes give or take. Only way I can restart is to prime 20-40x to clear vapor. USING ALTERNATIVE FUELS AND/OR 2-STROKE OILS NOT ACCORDING TO JASO FD OR ISO-L-EGD IN MAKITA 2-STROKE ENGINES WILL VOID YOUR ENGINE WARRANTY! If it is hard to pull, check to see how the spring is doing. (2 pages) "A sawyer was injured when gas from a . Vapor lock issue. Answer (1 of 4): There are quite a few things that will cause a chainsaw to bog down in a cut: 1. It is more recurrent in old models of chainsaws due to altered gas flow or issues with the spark plug. Remove the top cover of the chainsaw and remove the spark plug boot for safety. This video describes the causes of fuel tank pressurization, vapor lock and safe fuel handling techniques. Stihl saws have a serious design flaw that causes vapor lock. Does have issue with vapor lock when trying to restart when hot. Vapor lock will usually manifest itself after shutting the saw off and then trying to start the engine within a few minutes after the fuel has been sitting in the carb and has had a chance for the radiating engine heat to raise the temperature of the fuel system components to a point where the fuel can vaporize. Fuel geysers have resulted in injury . 01:00 Vapor Lock Vapor lock happens when excessive heat and vapors build up in the gas tank and aren't vented properly. Ergonomic LowVib handles combine comfort with maneuverability. Vapor lock occurs when the fuel within the delivery system is too hot to handle. Often referred to as vapor lock, the engine can't operate with these heated gases trapped inside the tank. BLACK+DECKER LCS1240B Chainsaw . It could also result in the deterioration of parts of the engine such as the . To troubleshoot this problem, flip your Poulan Pro chain saw upside-down and remove the gas cap. Pinterest. Check the routine maintenance items and make sure that the s. What causes a chainsaw to vapor lock? Description. It could, however, be a small crack or pin hole in the fuel line that is causing it to suck a little bit of air and starving the . Verified purchase: Yes | Condition: Pre-owned . Vapor lock more common as the cheaper winter fuel has more cheap Hexane in it which gasses out in the extreme heat. Small McCullouchs were famous for it too. TreePointer said: This can be a sign of a low pressure condition in the fuel tank which starves the engine (vapor lock). DON'T BUY A STIHL CHAINSAW Until You Watch This. The saw may not be running properly. not likely in a stock rhino fuel tank there is a vent system. Although common in older vehicle models, it wasn't until the appearance of the modern fuel injection system that vapor lock became more prevalent in carbureted engines. If the spring is starting to wobble, take it in to replace. The BLACK+DECKER LCS1240B is a battery-powered electric chainsaw cuts well for its weight class but doesn't do much beyond that. - tension the chain. 4.6/5 (2,252 Views . Then, standing at the stake, and using some sort of plumb bob (it's easy to improvise one with a piece of . https://www.amazon.com/gp/product/1635172993/ref=as_li_tl?ie=UTF8&tag=fintechcomm0f-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=1635172993&linkId=03. Great chainsaw especially for the price. Vapor lock occurs when the fuel within the delivery system is too hot to handle. The pressure causes the gas flow to reverse and move out of the carburetor, effectively shutting the engine down. Evaporating fuel gets locked inside the carburetor, preventing any of the correct gasoline and oil mix to reach the engine. I concluded a "vapor lock" had prevented the oil from flowing to the bar. 2. Its Smart Start system ensures quick ignition. Chainsaw engines run at high temperatures, usually in the summer, so they can quickly overheat. Why Vapor Lock Occurs Vapor lock occurs when fuel overheats and vaporizes in a fuel line, carburetor or fuel injector, disrupting the correct air-fuel ratio. Garden product manuals and free pdf . Well, there are a number of things that could cause the condition you describe. That's when the pressurized fuel from the tank sprayed outinto the crew member's face and eyes." Chainsaw Vapor Lock Accident, 2013. 5 out of 5 stars. Recalled chainsaws have a serial number between 173092800 and 181993952 under the front hand guard on the engine housing's . Vapor lock and problems restarting. Is the carburetor set for the proper mixture? You can also have problems if you are running winter fuel in the saw when it's hot out. Make sure to start this step at least more than five minutes after the last instance when the lawn mower's engine was still running. Vapor lock on a lot of these models, both Poulan and Sears. Vapor Lock is a Common Cause Outdoor Gasoline and Electric Powered Equipment and Small Engines - poulan 2700 chain saw/ fuel line - i have an older (15-20/year old) poulan chain saw, (it was my dad's,has not run in 12 years) with a walboro carb, that has the crankcase pulse for the fuel pump located on top of the carb. It seems that it was having fuel problems, but only intermittent. It could also result in the deterioration of parts of the engine such as the . Is the sparkplug gap correct? If the spring is completely broken, you may need to replace the whole starter assembly. They would boil the gas in their tanks. Try to pull the starter rope. Fuel geysers can happen anytime when there is fuel, heat & pressure from small gasoline-powered engines, chainsaws, leaf blowers, portable pumps, even when opening fuel transport containers. This is a common occurrence on older-model chainsaws. 36 Votes) When your chainsaw quits after it gets hot, you either have a problem with gas flow being restricted into the engine or with the spark. This occurs when the hot gas in the carburetor evaporates and prevents the right amount of fuel from reaching it. If you allow the chainsaw to cool down for 10 to 15 minutes, the saw will start without the gas cap being removed. Its an almost new Echo 346 and fires right up when. The resulting excess gas bubbles accumulate to the point of actually blocking normal fuel delivery. Try a different fuel and oil mix and see if it makes any difference. Solution they found: (Craftsman chainsaw with Poulan engine) Under the right conditions, any combustion engine can vapor lock especially with today's ethanol fuels. Choosing Chainsaw Oil. husqvarna 266 chainsaw vapour lock kit 503 50 21-01 new oem (h-3) vapor vapour lock / carb mounting kit, includes manifold 503 49 24-01, screws, gasket 501 2964-03, gasket 501 51 19-02, filter holder with support 504 35 86-10 HVA kit # 503502101 New old stock part from closed out dealer Fits Husqvarna 266 266xp chainsaw models. This is a small screen that prevents the engine from emitting sparks. It did for me on my 261 cm. Scenario: - run her hard, bucking cut after bucking cut continuously for up to a tank of fuel. Stay vigilant for geysers and other hazards. Chainsaw oils that have expired usually begin to break down and have low viscosity. This occurs when the hot gas in the carburetor evaporates and prevents the right amount of fuel from reaching it. What we comonly call vapor lock is actually one of 2 things happening. Vapor lock and problems restarting. The air filter should be visible and you should be able to remove it from its housing with a screwdriver. follow the hose that terminates into the roll cage, check it for free flow. If you aren't sure where the air filter is located, check your chainsaw's operating manual. I probably won't drill a hole my cap to avoid oil leaking out in storage, however I'll just have to remember to "crack" the cap a little to let air in. Push the primer bulb several . It could be a vapor lock condition like you described, but I doubt that since Echo usually does a pretty good job of routing lines. A simple, often overlooked, trigger for an engine stall occurs when the heated gases inside the fuel tank can't vent properly.