It will start and idle great, but will not rev up. Discussion in 'Chainsaws' started by Nutball, Jul 17, 2019. It is blowing raw fuel out of the intake when it idles. Click on Shop Parts, or select the kind of product you're working with on the left and we'll help you find the right part. View solutions. It was running great when I put it up. It will idle but when you increase throttle, it sputters and dies. The primer bulb won't fill with … It starts easily and idles great. 11 possible causes and potential solutions . The exhaust port screen on the muffler was blocked with caked on, burned up gunk so bad that is was solid black. I only has about 10 hours total on it. Stihl Leaf Blower Repair Help. Husqvarna 445 won't rev up. I have a Sthil 4 mix that will not rev up. It cranks very easy, but when I pull the throttle it dies before it even gets up to 1/3 speed. It has new fuel in it. Air filter looks good and plug does as well. Once in a while after playing with it for a while it will rev up and go shut it off and will not rev … i have a 130 lb compression, and spark. The only way I can get it to full throttle is to block the end of the nozzle. I have a stihl br340 blower that would not rev up to full rpms, i have replaced the carb, and it still woul not rev up, now it wont crank. No Video Available. It will idle but once you start to hit the gas it just boggs down the further you pull throttle. I have changed the plug, cleaned the air filter and changed the fuel pick-up filter. Search Help by Model. Exhaust is blowing out blue smoke, any ideas other than gas & oil ba … read more Leaf blower starts then dies. Stihl BH 55 leaf blower running real rough and won't get past idle mode. It was sitting on the back of my trailer when I backed into a VERY steep driveway. Wondering if anybody knows what this could be? i read that the coil has a rev limiter and if the diod blowes it wont rev up, so i replaced the coil, i still cank get it to crank back up i also removed the muffler, and still wont … ... stihl trimmers sthil chain saws stihl power brooms york sweeper echo hedge trimmer husqvarna bp blowers echo bp blower giant vac blowers new holland loader/hoe trailers and … Start Right Here Find appliance parts, lawn & garden equipment parts, heating & cooling parts and more from the top brands in the industry here. Most Common Problems. I have tried with the muffler and breather off the motor and it is the same. Need help finding your model number? I have a Stihl model HS 80 hedge trimmer that will not rev up. I have a 2 cycle Craftsman leaf blower that won't rev up. I get it and put 93+stihl oil mixed in it and it doesn't run good at all. The last time I used it about a month ago it ran fine. Gas is fresh. Exhaust is clear, Has new fuel filter, and still will not rev up. Leaf blower won't start. I idled great and seemed fine. The blower is 1/4 of a season old, bought new. 5 possible causes and potential solutions . I inspected air filter and even took it out and ran it that way and it still does boggs so I'm thinking its fuel … The Gas Engine on My Leaf Blower Overheats & Seizes. SHOP PARTS A couple of weeks later I started it up. I have a Stihl MS181. I bought a BR550 online and it was supposed to run good. Probably has less than 10 hours on it. Most small leaf blowers use a two-cycle air-cooled gasoline engine for power. However, it will not rev up. Pull the throttle and it bogs and dies. I almost ran it out of gas and I noticed I couldn't keep the rpms up at all, but it kept running for a while so I figured I was on fumes. This reminds me of a problem I just solved with a Stihl gas leaf blower. Thanks. 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