When warmed up even just a little bit this saw will drop start in one shot. You can put fresh gas andsea foam in it and keep starting it and allowing it to run as long as it will, https://www.pinterest.com/joelbc/homestead-methods-tools-equipment/, https://www.pinterest.com/joelbc/mixed-shops/, Outdoor Hub, LLC (d/b/a Carbon Media Group), 3290 W. Big Beaver Rd. Fuel filter might be clogged. IIRC, I have in the past been able to hook up a hose and wand and with the wand released, get it to start and exercise it until it worked properly again. Questions of a Do It Yourself nature should be If you’ve checked all the possible problems and corrected them and your chainsaw still won’t stay running – it might be time to bring it to the service center for a carburetor check-up. Some people wonder all their lives if they've made a difference. Any ideas? If your STIHL product was stolen, please report it stolen to your local law enforcement agency. I'd say either somehow it got too much oil in the gas or the carb leaked while it was sitting unused. I've pulled on the start rope over 1000 times but it still won't start. Stihl FS90R Trimmer. Re: Saw won't stay running.....Stihl MS290 I worked on a neighbor's 2 cycle weedeater once and the screws that held the two halves of the two halves of the crankcase had loosened up a little, so it would run OK with the choke on (it was sucking in air through the crack between the case halves and that would lean out … If the unit was registered at the time of purchase, we can have it added to the Stolen Unit Database. 9 times out of 10 it's old fuel and sitting without running. If your Stihl chainsaw starts up with a reassuring puttering sound, but dies when you pull the throttle trigger, there likely is an issue with the fuel, but the carburetor could need adjustment. I'd start by trying some new fuel mix. You may freely link If it is smoking, it's either flooding or getting way too much oil in the mixture. I am comfortable with working on 4 cycle stuff but have never really tore into 2 cycle. This will be a second plastic hose running from the lower crankcase to the carb if it is external. I recommend using the Stihl 2-cycle oil as well. What does the spark plug look like? Starts but wont stay running. Advice: Stay away from Stihl !!!!! Then when it starts next time, the oil left behind gets picked up in the fresh mixture and burns off causing a lot of smoke. The unit act like the pump is trying to pressurize when starting, IE: you can barely pull the starter rope and maybe get one turn on it. Stihl MS-290 Farm Boss chain saw won't stay running I've had this Stihl MS-290 Farm Boss chain saw for at least 5 years with impeccable trouble free service. mower is one year old. I thought it was the carb so I pulled it off and cleaned it and blew it out with compressed air. No spark I parked my 04 sienna and cut it off 2 hrs latter I tried to start it and would not crank starter was fried replaced with new one now it crank but will not start I tried starting fluid same thing cecked fire to plugs fire once and quit until you turn key agin fire once agin replaced cam and … We welcome your comments and Although certain unauthorized attachments are useable WARNING To reduce the risk of . My Stihl SH85 blower, wonder of German engineering that it is, has finally died a slow agonizing carb death. The only maintenance I have done to the saw is a tune up kit, air filter, fuel filter, new plug about a year ago. Outdoor Gasoline and Electric Powered Equipment and Small Engines - Stihl blower won't keep running. I put a new Zama carb on it, that didn't fix it. No Full Inspection Has Been Done Outside Of These Notes: Starts Up & Runs But Won't Top Out / Pick Up To Max RPM. If you have a "smoking badly" at each start up after it's been running for even the short time and warmed up, your valve on the reservoir may not be controlling the fuel like it should. The easy repair is the head to your local STIHL dealer and buy a new STIHL MM55 CARBURETOR 4601-120-0600 for about $40. When your Stihl MS 170 chainsaw drops its power under full load, it generally means there is an improper mixture of fuel and air in your carburetor. Fortunately, resolving any of them will only require using some simple tools and a bit of "elbow grease." i took the carb off and one of the fuel lines was very brittle and broke, i replaced the 2 lines coming in … JavaScript is disabled. My trimmer is now about 10 years old and this is my first problem. I use the Stihl oil and it has the measuring chamber on top where you squeeze the container to "pump" oil companies up to fill it. This drive sprocket comes under enormous stress and friction from the high speeds the chain spins at. . 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