I have a 10 year old Husqvarna 21" push mower with Honda engine. Still cranks on the first pull (most of the time) but a rare occasion needs a second pull. I have never had a push mower in this great of overall shape after 10 years of use.
I am having one problem that has me worried a bit. It runs fine when cranking and for about 2 or 3 minutes - then it starts smoking out the exhaust (medium to light) and continues for about 5 to 10 minutes - and then the smoking stops. The yard is flat, so the mower stays level.
• It started smoking like this last summer.
• It is not over filled with oil. I change it every spring and use recommended weight in synthetic oil.
• I have changed plugs about every 3 years.
• I change filters yearly.
I have two thoughts:
1. an oil ring problem but I don't know if lawn mowers, even Hondas have Oil rings.
IF it is an oil ring, where do I get oil rings for a Honda. I had enough trouble finding out that it had a Honda engine. Now to chased down the parts. I haven't overhauled a gas engine in almost 50 years. But I could still do it if I had to.
I remember engine mechanics speaking of "sticking" oil rings but never encountered that myself, so I don't know exactly what that means or how to fix it except to put a new one in - in the fall, if I do. Opinions? It has been a while since I did this type of mechanical overhaul.
2. It seems like one of those crankcase to throttle body "valves" that reroutes crankcase smoke to be burned. Only it is moving some oil into the carb for a few minutes, or the valve is sticking, if it has one.
Any ideas?
I hope this mower stays around as long as my year 2000 Craftsman 42", which is still going strong.
I am having one problem that has me worried a bit. It runs fine when cranking and for about 2 or 3 minutes - then it starts smoking out the exhaust (medium to light) and continues for about 5 to 10 minutes - and then the smoking stops. The yard is flat, so the mower stays level.
• It started smoking like this last summer.
• It is not over filled with oil. I change it every spring and use recommended weight in synthetic oil.
• I have changed plugs about every 3 years.
• I change filters yearly.
I have two thoughts:
1. an oil ring problem but I don't know if lawn mowers, even Hondas have Oil rings.
IF it is an oil ring, where do I get oil rings for a Honda. I had enough trouble finding out that it had a Honda engine. Now to chased down the parts. I haven't overhauled a gas engine in almost 50 years. But I could still do it if I had to.
I remember engine mechanics speaking of "sticking" oil rings but never encountered that myself, so I don't know exactly what that means or how to fix it except to put a new one in - in the fall, if I do. Opinions? It has been a while since I did this type of mechanical overhaul.
2. It seems like one of those crankcase to throttle body "valves" that reroutes crankcase smoke to be burned. Only it is moving some oil into the carb for a few minutes, or the valve is sticking, if it has one.
Any ideas?
I hope this mower stays around as long as my year 2000 Craftsman 42", which is still going strong.
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