I fixed this! I've owned a BG86 blower for years. For months, it would tend to want to die. Lately, would barely run, ran rough and would not rev up, barely blew. Checked air cleaner, was fine. Removed spark arrestor and it was charred/clogged totally! Burned that off with blow torch and now it runs like a beast. Easy fix! Wish chainsaws were so easy, lol.
Nice job. I saw that this tends to happen a lot in backpack blowers too.....specifically the BR600.....where it just completely blocks the exhaust just like yours!
Interesting , Thats what I have. Have to check when I get home. Thanks for the heads up. OK so now the million dollar question... What kind of oil have you been using ? Not to start the debate but I have heard of some that this seems to be more common with.
Regarding questions above, I don't know why blowers might have this problem often, you got me curious. If you find out, lemme know! As for oil I use, for about two years, it is Echo Red Armour and I mix to 40:1, which is same I use for my chainsaws. RE: this blower, for the first year or so, I used pre-mix, the 50:1 stuff. I posted this because the performance pre-repair was abysmal and it is an easy fix and the performance now is impressive! Yippee!
Thanks Yawner , I was just curious. Guess I should probably check the screens on everything. Can't remember last time I have cleaned any of my screens.
Welp... about two years ago, that very thing happened to me... impacted colon. I have no idea why it happened but it was terrible. No way to get relief from the pain, standing, sitting, lying down, didn't matter. Finally went to E.R. after I gave up trying this and that. They screwed around in there for an hour and a half, me and gf were watching intently and finally she went in and said what the hell are y'all doing, this man is about to die with pain and if you don't help him he is going to explode in your waiting room all over everybody. They then made stupid excuses (lies) and got me in immediately. The poor nurse... what a terrible job she had (low nurse on the totem pole). No matter what she tried, no relief. Until she used the last resort, a digital stimulation. (Her index finger up my rectum.) I had a blow out. It was bad. Can you imagine having that job! She was suited up in full body/head armour, though, so, that's good! I hope none of you ever have an impacted colon!
Sounds absolutely glorious for you in terms of the relief you must have felt with that digital stimulation. But what a horrible experience it must have been for her. Holy moly! Glad you came out of it ok!!!
Bingo. Stihl ultra is one oil known to clog those screens. I've never had a clogged screen in anything I have but I've never used Ultra oil and I tune my stuff really sharp.
Wouldn't help matters any if the carb was adjusted a lil rich either...dunno if it is or not, just sayin. And yes, oil type matters...most are adequate, some are superior.
I used to use Stihl Ultra (silver bottle) in my saws, as it was touted by some as a superior oil! Versus the Stihl oil in the orange bottle. I then learned about, supposedly, better oils and I chose Echo Red Armour and a key reason is it makes the mix fuel red in color. Makes it easy to identify what's in the can. I have seen quite a number of positive comments about this oil, so, hopefully, that is correct.
Have heard and read the same about both oils as you mention. One = excellent the other = not so good. You decide.
Echo Red Armor is the best OPE oil out of the 28-30 oils I've tested. For wear protection and cleaning abilities. In fact it bested all Motorsports as well except 2. One was significantly cleaner under my extreme testing and one was slightly cleaner. All three lasted my entire regiment of tests without damage. In normal ratios all Red Armor is outstanding.
Stihl oil used to be a beautiful cerulean blue and I never liked when they switched to a nearly invisible greenish brown. I agree that mix oil should be brightly colored. Clogged screens are most often from running at part throttle all the time, absent any carburetion issues or grossly miscalculated oil mixes. If you are the type to bounce on the throttle (for either a blower or especially a trimmer) for light jobs, there's your issue. Chainsaws don't see this as frequently because there's seldom a reason to run them at part throttle. Steady as she goes on the throttle please and only back down from wide-open if you must.
Exactly how I run all my 2 stroke equipment. W.O.T. once warm when working. Only time they aren't is walking to the next area if a trimmer, between cuts with a saw and almost never with a blower. They all get a minute or two of cool down idle time before shutdown
My Wif uses our Stihl blower constantly. It seems that about every two weeks I am cleaning the spark arrestor. I currently use the Stihl Ultra oil. Might be time for a change!