stihl ms170 bogs down at full throttle

dealer. Close. Hand Guard. Thread starter panic101; Start date Oct 19, 2009; panic101. ;-). No bogging and just cut a cord of black locust... Can it really be that sensitive to the amount of oil? When I am filling for a fishing trip for the 9.9 merc I mix 3 gallons and fill other containers with that. Kept bogging down at full throttle. JavaScript is disabled. stihl ms170 bog down. I would get it going again and the same thing would happen. So this year I put the new Zama pre-adjusted carb on it, replaced the fuel filter, air filter and spark plug. Retro fitting an adjustable non EPA carb onto a Stihl 017 that's Bogs Down in place of the EPA non adjustable carb to bring it back to life. I have a stihl blower that starts and idles fine but bogs down and cuts off when I try to throttle up. The throttle position sensor is key to getting the desired power and fuel efficiency from your vehicle in any driving situation. The machine is designed to run full throttle. If I open the throttle fully it quits instantly. 1.8k members in the stihl community. My Stihl Weed Trimmer Is Dying at Full Throttle. The problem I have with my Stihl ms200t chainsaw is it bogs at the initial full throttle from idle then it takes off, besides that it runs great you let it idle a … If your saw has a limiter on it you might only be able to adjust in the cut (with the help of an assistant) or with times tests. You are using an out of date browser. Took weeks to arrive from China and then visibly defective when delivered. Reviewed in the United States on August 6, 2015. Bar nose sprocket turns easily. Chain Saw: Engine Will Idle But Dies At Full Throttle . Only attachments supplied by STIHL or expressly approved by STIHL for use with the specific STIHL model are authorized. 4. It just bogs down in the cut. Quick Chain Tensioner. ... share. share. I also adjusted the HI/LOW screw settings. Quadrafire 4100I. 2.0 out of 5 stars Don't try holdinng your breath until it arrives, and then allow extra time to repair it. It bogs down it seems and stalls out when I open the throttle. Re-chocking (once until it kicks) gets it running again for another 20-30 seconds. does it run without air filter? Spark plug and chain are new. 2.) 120 ft hank of rope and a small tool box​. My Stihl MS 250 chainsaw engine would bog down at the strangest times. Fs 130 bogs down at full throttle after a couple seconds, replaced fuel filter assembly, carburetor is clean, throttle is adjusted right, what am i missing? The saw starts great idles good but when I rev it to full thottle it is just like you shut off the gas. The 2-3 hours of running has been in warmer weather. Well suited to domestic users, the MS 170 chainsaw has been fitted with the STIHL anti-vibration system for comfortable use. A common reason for what causes a gas weed eater to bog down is actually insufficient fuel. Fuel filter is clean. In all fairness to Stihl, I think I am to blame here for buying cheap-ass Chinese filters that are too thin to seal out the airborne sawdust. … Excellent aid to anyone looking to clean their MS170 carb: if particles are going into the carb through the air filter that won't plug up carb. MS170 is 2 years old, suddenly developed a bogging out problem in the middle of a cut. 4. IRIS'S MOM. Stihl MS 170 Chainsaw (MS170D) Parts Diagram Select a page from the Stihl MS 170 Chainsaw diagram to view the parts list and exploded view diagram. Engine Housing. Gee, I could have sworn that air pocket was out of the gas line! Its the chainsaw on my tag. Ms170 vs ms180. I use Stihl or Echo The 50:1 mix is usually recommended but in hot weather i go a little heavier with the oil like a 32:1 or around there. 1,024 Posts #3 • Jan 1, 2008 (Edited) Have you checked the fuel filter? I can keep it running if I feather the throttle, but it still wants to bog down and quit. JavaScript is disabled. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. All parts that fit a MS 170 Chainsaw . I feather the throttle, it revs then bogs again - Answered by a verified Technician We use cookies to give you the best possible experience on our website. Its done by sound and its impossible with words to explain what 4 cycling sounds like. Maybe I'm just lucky, but the gas I get around here all seems to be pretty good. Carburetor C1Q-S137 BR. Noticed the fuel line was seriously degraded. By J.D. Read more. It starts quickly, cuts quickly and smoothly and makes easy work of removing tree branches, cutting firewood, or any other task that calls for a chainsaw. Reviewed in the United States on August 6, 2015 . 3. Steve. Took weeks to arrive from China and then visibly defective when delivered. Too leen could lead to premature top end failures and too rich your loosing power. STARTS AND RUNS. If the engine speed exceeds the upper limit of 14,000 rpm the mix is enriched to bring the speed back down to 14,000 rpm. If you just pull the trigger quickly and try to go full throttle it will bog down. So anything that causes a change in air velocity through the carb will change the mixture, but these carbs are non-adjustable. Stihl BG75 Blower surging at WOT. So anyhow, I've ran about 25 hours and took it for a tune up. Our repair guide can help you identify the right part to stop your chainsaw’s engine from dying at full throttle. tried fuel filter, spark plug, fuel cap. Ms170 vs ms180. no power rpms drop acts like it is going to die let off of it it will pick back up and run fine. Back out 1/8 turn at a time and try. I know in your first post you were saying your gas was fresh. User account menu. STIHL MS 250 WARNING To reduce the risk of kickback injury use STIHL reduced kickback bar and STIHL low kickback chain as specified in this manual or other available low kickback components. I'm having trouble with my Stihl MS180 C-BE chainsaw. I looked at the manual and tried what it suggested. STIHL MotoMix ® contains no ethanol and has a storage life of up to two years. turn the low screw 1/4 ccw and mix 50:1 be safe with the big saw! The top end tune is very important. Ah hell, got inside the carb but while removing the little brass jet, which was screwed in, Fine sawdust is very unlikely to build up in the parts of the carb exposed to the intake air. If its a tune fix then its the Low speed screw. It may affect idle so that may need changed too. Briggs-Fan. Thread starter iod0816; Start date Nov 4, 2011; Forums. Carburetor C1Q-S57A. 1; 2; Next. 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. After a year of use the thing was completely fouled up. I had to feather the throttle just to get the RPM's up there. buy an adjustable walbro carb from ebay for about $15.00. save hide report. Joined Oct 28, 2008 Messages 26 Location enfield,ct. I have a small 011 stihl I use for trimming. Someone reviewed these typical aftermarket air filters on Amazon like this: Filters are much too thin. It idles great (would idle all day if I let it). For me its mostly about high side tune. Only time a I get crazy about tune is timed cuts at a GTG. Gas is fresh. The saw starts great idles good but when I rev it to full thottle it is just like you shut off the gas. 5 people found this helpful. Look for cracks, also look for it to become soft and gummy. After running at full power for about 10 minutes, the engine speed slowly decreases until it barely runs. If you can swing the extra cash, the MS 250 is the best value in the “homeowner” line, and it will give you the best power to weight ratio for the money. Handle frame . ... FOR SALE BY AUCTION WE HAVE THIS USED STIHL MS170 14" CHAINSAW. If you discover that you have enough fuel but your machine does not start, then examine the fuel tubes. Nov 4, 2011 #1 Its the chainsaw on my tag. If your chainsaw engine dies at full throttle, check the following parts: the carburetor, fuel lines, fuel filter, air filter, and muffler. ADVERTENCIA Para reducir el riesgo de lesionarse como resultado de un culatazo, utilice la barra y la cadena de contragolpe reducido de la forma especificada Once it did start it would bog and die with little throttle. As has been stated B4- play with the carb settings. Good point, Jay. WE LIST THIS AS SPARES OR REPAIRS AS IT BOGS DOWN ON FULL REVS AND UNDER LOAD , SO WILL REQUIRE SOME SERVICE WORK AND TUNING UP. It acts like it is not getting fuel. those passages are affected by what is in the gas tank. Will have to learn how to carb adjust myself definitely tho! It bogs down it seems and stalls out when I open the throttle. I like mixing at the pump too. I'd look at the gas before the oil. Jan 4, 2010 126 Someplace in WMass. This year however it starts fine but bogs down when I throttle. Prolly sneaking some more ethanol or other fillers in... Glad you got it pinned down. Might want to get a look at the P&C before you buy anything else. no power rpms drop acts like it is going to die let off of it it will pick back up and run fine. Oct 19, 2009. The engine boggs down under a load and when just reving the saw. i can get it to run but it is very touchy. Pages in this diagram. Air Filter. If you burn it over 30 days, big... Bogging was from 15 to 30 day old gas from cheapo mart... And there really isn't a price difference! The problem I have with my Stihl ms200t chainsaw is it bogs at the initial full throttle from idle then it takes off, besides that it runs great you let it idle a couple seconds or minutes and pick it … read more. 1 of 2 Go to page. I played with a different batch of 93 and made sure it was 40:1. i got this stihl 021 free from a friend. Since the tune, I've ran about 2-3 and noticed with this particular can it's been bogging and stalling. Only use high grade oil - it doesn't cost but a few pennies more. 4. Where do you think the sawdust will go, just evaporate into thin air? If you don't have experience tuning a chainsaw its best to learn from someone that knows how. They will plug the airflow or fuel flow, I will find out which today. So after experimentation with the places I buy my gas from, Shell is by far the best (by me). My 1997 Stihl TS 510 Brazilian made cut off saw (same metal base as a chainsaw, carb's a Tillotson) ran well for 10 minutes, then lost power if under load, but would spin up if not under load and sound ok, but bog down again if loaded. Fuel is fresh and correctly mixed. Carburetor C1Q-S57A. The repair and symptom guide will help you better identify the part needed to be replaced and how. Chainsaw Bogging with throttle pressure. Probably don't even need a kit. the saw seems great the only problem is at full throttle it bogs down. Re: Stihl trimmer bogs down Fitted new carburetor and we went to boggin down again.Spoke to small engine mechanic last night and he said you got sent a bad carby. I have a four-year-old Stihl SH 85C blower that has developed a problem the last three times I have used it. Have a 4-year old Stihl FS45 trimmer that has worked flawlessly every season. I was considering carb rebuilds, and because the gas was ethanol gas, I chose to pull it … Ignition System. When it gets real cold like 10 degrees I do richen up the high side but rarely need to adjust the low. Ok, oh great wizards of small combustion engines, I have a problem that really has me confused. 14'' Chainsaw Guid Bar For STIHL MS170 MS171 MS180 MS190T MS211 MS230 MS2. It will not run at full throttle. My neighbor's Stihl chainsaw was bogging down so I said I'd take a look at it. I got a Stihl backpack blower at the start of this season which I really loved. Quite possibly right on through. I have to keep revving the throttle to get it to come around. Any difference in the sources of the gas from the first time and gas you used today? Stihl MS 170 Chainsaw (MS170D) Parts Diagram Select a page from the Stihl MS 170 Chainsaw diagram to view the parts list and exploded view diagram. You can still dispense the right amount somewhat accurately. Misses and backfires a little. If you look at the messages I quoted above, you'll see that others have found the same issue. Status Not open for further replies. Damaging the carb with full throttle = no - no break in period. Verified Purchase . Last season (the first) it ran like a champ. This is a Sthil FG75 Blower with a Zama C1Q carb, the carb does not have a H and L adjustment screws, only the single Main Fuel Adjustment screw. I replaced the carburetor, spark plug, and fuel filter, but no change. Since you "took it for a tune up" take it back, and ask for a follow-up. This ensures a constant maximum speed. Do not operate the throttle, run the equipment only at idle speed until the engine stops!) Stihl MS170 Review If you want a powerful chainsaw, the small model Stihl MS170 is a good choice. Saw has been mine and only mine since new. Many times at GTGs we would tune each others saws while in a cut. I have a small 011 stihl I use for trimming. I guess I don't shop at ALL of the gas stations, though, so maybe luck doesn't have much to do with it. The carburetors used almost every Stihl power tool is called an all position diaphragm with integrated fuel pump. The Gear . You must log in or register to reply here. Weather is 30-50 … it needed a bar and the fuel tank vent so i went and bought those and installed them. You need to ease into the trigger and build up the rpm's. I can’t say there was one time in particular, but I guess mostly when I put the saw under a load. I took the carb off and dismantled it; blew out the jets, eyeballed everything. This season I had terrible bogging when throttle was applied. When you depress the trigger, a vent on the carburetor opens, allowing more gas to reach the mixing chamber. small engines blower bogging down at full throttle poulon ppbv25 blower has less than an hour use ... of it when i gave up the tank was half full but the next leaf blower bogs down on throttle ideas jump to latest when my stihl weed eater ran at idle but bugged down and died when i gave it it a little extra It may not display this or other websites correctly. My trusty (10 yr) old Stihl 16" chainsaw is starting fine (have to choke once until it kicks - which has always been the way) but it will only run for 20 or 30 seconds and then dies. The STIHL MS 170 is a small chainsaw that packs a punch It is perfect for cutting firewood and for general garden chainsaw tasks. And for plain ole firewood cutting it mostly just a summer winter thing. Did you say you got NEW 93 and remixed? KICKBACK A Stihl mechanic on here said its a carb issue, mostly from ethanol in fuel. There is a fine screen over the exhaust called a spark arrestor. Changed the fuel line and filter. Air Filter. It runs fine with the new air filter I have inserted. If I have the choke off it will idle for a bit but as soon as I go to give it throttle it sounds like i bogs down … 18 comments. Fs 130 bogs down at full throttle after a couple seconds, replaced fuel filter assembly, carburetor is clean, throttle is adjusted right, what am i missing? Stihl manufactures trimmers with two-cycle engines as well as ones with four-cycle engines, and both require a … I. iod0816 Member. Clean out the screen in carb like moutainlake suggests. Examine the surface afterward to look for a light line of oil made up of small dots to prove that the oil is emerging from the reservoir. If your trimmer engine idles, but stalls on throttle, check the following parts: the gasket, primer bulb, fuel filter, air filter, fuel vent, fuel line, and carburetor. This new carb cured that issue. Put in new gas mix. P&P: + £5.99 P&P . My suspicion is contamination via the air intake MS 170, MS 170 C, MS 180, MS 180 C. instruction manual.) BUYER TO COLLECT FROM OUR STORE NEAR BANBURY … 39B25E8A-293B-42E7-8DE1-943AB026A2EA.jpeg, BFA1D4DD-737A-4B73-B4FF-F440B5C886A6.jpeg, 888A5D3F-13C0-4D03-AAC6-F91D1E8DD757.jpeg, 1234B877-B08C-4178-8C84-62510FCE5D3A.jpeg, 8C7B60B8-597B-4349-A812-70251BA441D1.jpeg, Home Made Pellet Stove Controller (2).JPG, 71A87E55-8AA5-4F49-99FE-9B2E3AE0DDC2.jpeg, B51E5072-2B82-4EE7-98B9-A2C979813827.jpeg. See the seller’s listing for full details and description of any imperfections. Posted by 18 hours ago. Main Hearth Forums. 2.0 out of 5 stars Don't try holdinng your breath until it arrives, and then allow extra time to repair it. Trimmer: Engine Will Idle But Dies At Full Throttle . I have big saws but now only use this small chainsaw because a back injury means I cannot handle the heavier ones. Kept bogging down at full throttle. Look at the fuel line closely. It does have a cold air intake setting but nothing other than that. Chadwick 13 July 2018 Next Last. Muffler. the sawdust will go into the engine not into the passages of the carb. The issue turned out to be very simple. Atmos DC32GS with Laddomat 21G, 720 gallon single tank pressure storage with domestic loop, 500 liter Amtrol ASME exp. I'll add roughly half the required amount of fuel to the can, it doesn't have to be empty if you are mixing at the pump. Dolmar 7900 24".... X27 and my Titan. Oct 19, 2009 #1 i just purchased a stihl ms170. I have replaced the spark plug (properly gapped), rebuilt the carb, replaced the fuel line and the fuel filter, cleaned out the chain brake and the clutch and cleaned the fuel tank air pressure stabilizing valve. ... See the seller’s listing for full details and description of any imperfections. Weather is 30-50 when I'm cutting and I'm trying to run 40:1, 93 only. Weather is 30-50 when I'm cutting and I'm trying to run 40:1, 93 only. I'm looking at getting either an ms170 or a ms180 and wondering what differences there is between other than engine size. I'm getting good spark and my exhaust and spark arrestor are clean. For a better experience, please enable JavaScript in your browser before proceeding. To check whether this could be the cause for your problem, check the amount of fuel you have in the tank. My saws all sit out in the unheated building and I never have any issues with basic tune. Complete with the same design features the professionals depend on, the MS 170 is lightweight with just the right amount of power— perfect for residential cutting and trimming of small trees, firewood or storm clean up. appropriate section of your instruction . Report abuse. If that doesn't work a new carb. save hide report. If enough chit went through the filter, where do you think it went? Haven't had to do one thing to it in 10 years. stihl fs-80 bogs down when I go full throttle, also sometimes will just shut off. It's not very old. try some seafoam, fixed my problem that was similar. For a better experience, please enable JavaScript in your browser before proceeding. Point the tip of the chain saw blade at a light-colored surface and allow it to run at full throttle for 45 seconds. Verified Purchase. I guess I read the the post but ignored that last part. I'm very good at tuning and still when I raced I had someone even more experienced tune my saw to get a few hundredths a sec more from it. Even Stihl makes heavier filter to try and keep sawdust out of engine. Let it warm in the cab before cutting on the ride there, started 1st pull after first on pull choke. IRIS'S MOM. This new carb cured that issue. It happens after it's warmed up and at full throttle as well. Stihl 290 revs full then bogs down. I also replaced the fuel in it with the premixed Stihl gas. Are the settings off or...? Super Pro 125C,.404 General 30" roller nose bar, http://web.archive.org/web/20051018212959/www.madsens1.com/sawtune.htm. Find helpful customer reviews and review ratings for QAZAKY Carburetor Replacement for Stihl 017 018 MS170 MS170C MS180 MS180C Chainsaw 1130-120-0603 11301200603 Zama C1Q-S57 C1Q-S57A C1Q-S57B C1QS57 C1QS57A C1QS57B Carb at Amazon.com. It bogs down it seems and stalls out when I open the throttle. 18 cords on hand. Intelligent engine management is active even during uncontrolled rich come-down at full throttle. All parts that fit a MS 170 Chainsaw . Go. its been stored inside for around 8 years in a case.prior to that it was barely used. It will go through the engine, possibly causing wear on piston and some carbon buildup. Posted by 2 months ago. STIHL recommends the use of STIHL MotoMix ® fuel which is pre-mixed with STIHL HP Ultra synthetic oil. am I looking at a carb rebuild. £14.91. Fs 130 bogs down at full throttle after a couple seconds, replaced fuel filter assembly, carburetor is clean, throttle is adjusted right, what am i missing? It takes a keen ear and sometimes a tach to get it just right. Although certain unauthorized attachments are useable WARNING To reduce the risk of . These kinds of carbs cannot hold a constant fuel/air ratio as air flow changes. P. panic101 ArboristSite Lurker. I am now using 2 of them at a time to create some sort of seal at the edges when the cover is put on and locked down onto them. Report abuse. I had an 017 at work that would do the same but eventually just wouldn't start, I took the carb apart and cleaned it but had to throw it back together because more important things came up, sent it to a dealer who said it was dead, year or so later last month pulled the carb apart and found out needle valve lever didn't have enough bend to open the needle valve. Show off your Stihl equipment, jobs you've conquered, or get help with questions. starts on the second pull every time, but soon as I turn the throttle all the way up it bogs down and kills. If the saw drops at full throttle, not enough gas or air is reaching that chamber. ... WE LIST THIS AS SPARES OR REPAIRS AS IT BOGS DOWN ON FULL REVS AND UNDER LOAD , SO WILL REQUIRE SOME SERVICE WORK AND TUNING UP. Cylinder. if all good then yr filter is choking it. Pages in this diagram. I drained the gas, put a new plug in.....still no luck. Not a daily temperamental deal. I checked the - Answered by a verified Technician ... My 1812 runs very rough, idles a little high a low idle, and a little low at full throttle. My first thought was that the gas went bad but other tools with the same gas are running fine. I run a tiny Stihl MS150. YEAR 2004. Now the saw starts and runs, but wants to die under load. Bet there is some crud in there. My faithful stihl 024 chainsaw would start but not run today. If the filter significantly changes the air flow, the mixture must change. Carburetor C1Q … Even then, give it some gas and it would just want to bog and die. When my Stihl Weed eater ran at Idle but bugged down and died when I gave it it a little extra trigger, my problem was just a simple matter of the gas having gotten too old. If you burn it same day, little difference.

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