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Old 04-24-2013, 11:07 AM
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mowZ06 mowZ06 is offline
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Join Date: May 2010
Location: Ohio
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Exmark Lazer Z 60 23 kaw backfires

I have a 10 year old Lazer with a 23 Kaw on it . The mower has almost 4000 hours and the engine is original. The mower still has the original spindles and hydros and it cuts good still. the problem I have with it is that when you go to start it cold it takes about 3-4 times of trying and it backfires and pops each time until it starts. When it is hot it will firer right up each time. Any suggestions.
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Old 04-24-2013, 01:39 PM
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piston slapper piston slapper is offline
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4000 hrs..?????..Might be time to adjust the valves....check the compression...things like that...
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Old 04-24-2013, 06:20 PM
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mowZ06 mowZ06 is offline
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Actually 3877 hours. Valves were adjusted once at around 3500 hours. One of my spark plugs is hard get the first couple threads starting to take hold when I last changed them. All I can think is maybe I have some plug threads that might be messed up letting air in or out. Only when it is on cold start ups it happens though. I cant complain to much with this many hours. Just though someone else might have the same issue.
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02 2500HD,4x4,CC,8.1
03 2500 Express Van
Exmark 60" Lazers
Ultra Vac
Toro Pro Line 52"'s
Toro Pro Line 36"
Exmark Metro 36"
Redmax Hedge Trimmers
Redmax Line Trimmers
Redmax Backpacks Blowers
Stihl Backpack Blowers
Echo handblower
Etc,etc,etc,,,,
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