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Lawnmower starting issue
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<blockquote data-quote="jdfisherman" data-source="post: 488760" data-attributes="member: 1475"><p>Walk behind mower - had an issue with hard starting when warm. Best I can figure is either the exhaust valve is burned a bit or has carbon buildup. Has good compression when cold but when warm the exhaust valve doesn't seat all the way so lack of compression makes it hard to start. I don't know if I'm imagining it but I run a tank of 1/3 Seafoam 2/3 gas through it every 4 - 6 weeks and it seems to help with the hard starting. Have also used the spray Seafoam where you take off the air cleaner and spray into the carb when running - short bursts a few times then a full blast until the engine chokes out. Let it sit for 20 minutes then restart. Cleans up some of the carbon deposits.</p><p></p><p>Going on 25 yrs now so it's definitely getting wore out but keep limping it along because all of the new stuff is junk.</p></blockquote><p></p>
[QUOTE="jdfisherman, post: 488760, member: 1475"] Walk behind mower - had an issue with hard starting when warm. Best I can figure is either the exhaust valve is burned a bit or has carbon buildup. Has good compression when cold but when warm the exhaust valve doesn't seat all the way so lack of compression makes it hard to start. I don't know if I'm imagining it but I run a tank of 1/3 Seafoam 2/3 gas through it every 4 - 6 weeks and it seems to help with the hard starting. Have also used the spray Seafoam where you take off the air cleaner and spray into the carb when running - short bursts a few times then a full blast until the engine chokes out. Let it sit for 20 minutes then restart. Cleans up some of the carbon deposits. Going on 25 yrs now so it's definitely getting wore out but keep limping it along because all of the new stuff is junk. [/QUOTE]
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