I have a Craftsman self-propelled walk-behind mower. It is about 10
Can I safely flush the engine (like you can on some cars) or is just
changing the oil at sooner intervals better?
What is the best way to clean the carb (while it's still on)?
Is it running OK? If so change the oil and go cut the grass. Maybe throw a fuel
filter at it.
Running fresh gas through a carb is the best way to keep it clean. Most gas has
injector cleaners in it these days anyway.
Just change the oil at shorter intervals.
Clean gas should be sufficient unless it is gummed (if it's a Tecumseh --
likely but not certain on a Chraftsman-- they can gum the main jet , which
is mounted in the bottom center of the carb), then disassemble and clean w/
carb cleaner and reassemple w/ new gaskets etc. as mower gasket & jet sets
are only a few dollars.
or your local shop.
I think I'll do just that. It got an oil change and an external
cleaning (grease and grass) and oiling today. Runs good. How often
should the oil be changed? I must admit, it's only been done once a
year with me. I mow year-round.
My last craftsman last 10 years. I did yearly oil change but only
dump old oil through the filler tube by tipping the mower. When It
died I opened the drain plug inside the blade shroud, about a half cup
of oil the consistency of molasses (of higher density and less
uniformity) came out. With my current mower, I am now draining oil
every year by removing the plug before putting the mower to storage.
its not a good idea to let the engine sit dry all winter. you should refill
it with new oil and put a squirt in the plug hole before storing it. keeps
the rust away.
not to mention the 'oops i forgot to refill it' factor.
Walking mowers take about 16 to 20 ounces of oil, typically. I just drain
them and put in new oil. Use good stuff, not Kmart brand or Walmart brand
for 60 cents a galon. No real advantage to motor flush.
Mowers are air cooled, and run much hotter than cars. Needs name brand oil.
I clean the carb with a spray can of Gumout. Spray the outside to clean
grease off, and free up the linkages.
there is exactly one difference between kmart oil, penzoil, all the oils:
the color of the label. in fact if you were to research it you will find
all the oil comes from the same places anyway. kmart oil is made for kmart
by one of the name brand companies. any 'torture testing' you may have seen
on tv is smoke and mirrors. if you believe the hype about their additives,
so be it. if you change the oil according to the manufacturers schedule,
and maintain a proper level, all other concerns are insignificant.
if you want/need 'good' oil (and you probably dont...), the next step up
from kmart oil is synthetic oil. ive noticed many lawn mowers recommend
synthetic oil these days.
You are partly right and partly wrong.
There IS a difference in oils based on the letters on the container. These
are government mandated and indicate the quality, additives, etc of the oil.
Any brands with the same letters will perform in the same way.
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