Thx alot for that my man !! Thats the best detailed explanation ive been looking for months especially for my 525lst Mark II and finally i got it !! Thx 😎
The term "four stroking" is used to describe a rich condition at full throttle. You can adjust a carb so the engine runs perfectly smooth at full throttle but if you richen it up just a little more it will eventually run so rich that the tone changes. It almost sounds like it misses a beat...kinda like a four stroke engine that only fires every other stroke. I should point out that you can pick up on this same rich condition at idle once you know what you're listening for.
Thats possible but I don't think so. It could have had a lean tune even for hot weather and when it got cold outside that tune would have been even leaner. I've also seen where units sit a while and the fuel starts to gum in the hi and low passages. Fiddling with the adjustments gets things full flowing again. I know that seems weird but I've seen it many times.
@@rooster3019 I knew someone was gonna ask because good running units don't usually just all of the sudden need a carb adjustment...unless there is an elevation or temperature change. I think that might have been a factor here because I saw a lot of lean runnings saws recently as well. This trimmer could have been lean the whole time and our cold snap was just too much.
@@TheGreasyShopRag I was asking in regards to a husky 141 I'm working on. Replaced piston and cylinder, fuel line and filter, rebuilt carburator, new impulse and and intake boot. Starts up, idles but wont rev just bogs.
Thx alot for that my man !! Thats the best detailed explanation ive been looking for months especially for my 525lst Mark II and finally i got it !! Thx 😎
Thanks for watching!
Thx for all of your great videos and the thorough description of your technique. Much appreciated.
Would you please explain “four stroking”? Thx
The term "four stroking" is used to describe a rich condition at full throttle. You can adjust a carb so the engine runs perfectly smooth at full throttle but if you richen it up just a little more it will eventually run so rich that the tone changes. It almost sounds like it misses a beat...kinda like a four stroke engine that only fires every other stroke. I should point out that you can pick up on this same rich condition at idle once you know what you're listening for.
Thanks so much@@TheGreasyShopRag
Good stuff! Thanks for sharing!
Thanks for watching!
A short excellent video Scott. I especially appreciate your explanation on carb adjusting!
I hope it can help you in the future. Thanks for watching!
Nice Repair 😀👍🏼
Thanks!
Good information
Thanks for tuning in!
Thank you, great video. A lot of teaching. Not sure the effect of the love tap. Lol
Are you referring to the tight spark plug? I suppose I could have hit it harder but I have enough tools I shouldn't have to hit it at all!
@@TheGreasyShopRag. Approx 5:17 into the video. Odd you are richening , and just last week I had leaf blowers needing a tweak mainly to help start.
@@steveriggenbach90 I see screws so I turn them 🙂
Nice easy repair,if they were all as easy as that!
Thanks for watching!
What do you think made it go out of tune in the first place? Maybe the customer was fooling around with the adjustments?
Thats possible but I don't think so. It could have had a lean tune even for hot weather and when it got cold outside that tune would have been even leaner. I've also seen where units sit a while and the fuel starts to gum in the hi and low passages. Fiddling with the adjustments gets things full flowing again. I know that seems weird but I've seen it many times.
Pozdrawiam z Polski 🙋
Can't argue with that...mostly because I don't know what it means.
Can an air leak cause a bog? Even though the saw idles fine?
I am also thinking about what changed that made it run too lean. Leak, clogged exhaust, owner messing with it, other ...
Yes an air leak can cause a bog but an air leak would have created a high idle which we didn't have.
@@rooster3019 I knew someone was gonna ask because good running units don't usually just all of the sudden need a carb adjustment...unless there is an elevation or temperature change. I think that might have been a factor here because I saw a lot of lean runnings saws recently as well. This trimmer could have been lean the whole time and our cold snap was just too much.
@@TheGreasyShopRag That is a good tip for me about barometric pressure since I tend to work more on bluebird days.
@@TheGreasyShopRag I was asking in regards to a husky 141 I'm working on. Replaced piston and cylinder, fuel line and filter, rebuilt carburator, new impulse and and intake boot. Starts up, idles but wont rev just bogs.