My father has ALZ and he put 2 stroke gas in hes push mower. I don't know how long he did that before the motor stopped working but Im just pretty sure the two are contected. I cleaned the carb real good but the motor still struggled start and would only run maybe a few seconds. With the air filter off, I could get it to stay running if I covered the air intake with my hand chocking it. After letting it run that way for maybe 30 seconds, I removed my hand, the motor stalled, and I noticed what appeared to be smoke/exhaust coming out the air intake. I removed the muffler and the motors cranks and seems to run fine. I looked up this muffler it does not have a spark arrestor. Can not find anything online of this type of issue. Will 2 stroke gas clog a muffler? Im oddly worried replacing the muffler will not change anything meaning the new muffler will some how bog it down. What else might be going on?
#2
EngineMan
A four-stroke engine will show smoke using a 2-stroke mix, and also not run well, you may have some carbon build up in the muffler, now that you have it off run some hot water through it see if it comes out. post up the engine numbers so we can see what engine you have.
Its a craftsman with briggs stratton 7.25 163cc motor. All 2stroke gas is out. I've used this mower without the muffler extensively this season, runs fine besides how loud it is. There is also apart of the muffler that controls one of the levers on the carb... but the motor seems to run fine without. Even though its running fine now I'm worried that it could be causing harm decreasing the life of the motor long term...
#4
EngineMan
You will need to put back the muffler even if its going to be a new one, engine will run much better with one, numbers are on the engine cover.
#5
Boudreaux In Eunice La.
Jpetie you have the EZ Start engine..... You need that muffler on there for the auto choke to work right.... That part from the muffler to the carb is the choke lever..... When the muffler gets warm it moves that arm to open the choke..
If you can't find a muffler I have some of those in stock......
So you think the old muffler was just clogged and nothing else? I’ll drop into my local small engine shop and get this muffler ordered. It’s roughly 35$
I didn’t think the plastic cover was overly important and I give the mower a good blow off with my blower every use for cleanliness
#16
Boudreaux In Eunice La.
Plastic cover is merely cosmetic....... It does keep the large stuff out though... Did you get my Pm ??
#17
Boudreaux In Eunice La.
Well guess what guys ?? I jumped the gun again.......... I took it for granted he had the older style L Head Briggs... Nope he has the newer E series with the plastic carb on the Port side of the engine. I was reading a post earlier about a 12 year old engine a few minutes before.... When will I learn not to jump the gun ???
Anyway he gave me a call on my shop phone and we got it straight.... He didn't take the carb off so he was running with the choke on or partially closed all this time.... He even said that in his post about putting his hand in front of the carb......
In fact he wasn't far from me on his fishing trips down here in South Louisiana.... He got the instructions for cleaning the carb.. He had let the gas out from the drain plug. So it wasn't a total tear down and clean...
He said he will report back with the news after the repair..... At least it's gonna save him some cash on the muffler that he doesn't need.....
