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Old 06-15-2002, 12:44 PM
hochi1942 hochi1942 is offline
LawnSite Member
Join Date: Jun 2002
Location: tx
Posts: 1
lawn mower engine help

hi recently i was using my lawn mower murray with a 3.75 hp briggs engine. and i accidently hit wire. the blades kept going but all the sudden white smoke came out of the exhaust furiously. and i stopped it. i tried starting it again but it gave out black smoke this time. i asked a professional but he said that it is just burning extra oil but i never added any oil to it. i thinking there is another problem.

Does anybody out there have any insight on this problem?
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Old 06-22-2002, 12:06 AM
TFL TFL is offline
LawnSite Member
Join Date: Mar 2001
Location: Mt. Pleasant TX
Posts: 210
i am no expert but i would say you need a new set of rings. these help seal off the piston. Also black smoke usually indicates too much gas being fed to the engine where as white indicates too much oil.
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Old 06-22-2002, 01:12 PM
snapper snapper is offline
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Join Date: Jun 2002
Location: Knoxville, Tennessee
Posts: 399
I am assuming its a push mower. Have you checked the flywheel key? When I hit something and it doesn't run right afterwards, I check the key. Also make sure the blade is tight. Hope this helps.
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