kawasaki engine fh721v-as32

melsauto

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Jul 28, 2016
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1.Ignition control unit
2.Lower the float level inside the carb to slightly lean it out.
3.Adjust pilot screw.
4.Use real gas and stabilizer year round.
5.Use a fuel shutoff valve and a good paper fuel filter every time you mow.
6.Keep oil level at the FULL mark on a flat surface. Not in the back of a trailer parked uphill.
7.Remove blower/starter cover and clean out all the dirt, oil, grass and bugs from the engine block cooling fins.
8.Valve clearance in proper spec?
9.Good supply of cold beers?

slomo
On some carburetor you can't adjust float level.
 

melsauto

Member
Joined
Jul 28, 2016
Threads
3
Messages
19
I have a 2006 Ferris with FH721V - same problem over last two years. I adjusted valves, they were .011, so put them to .004. Seemed to help some, but not completely. Was able to start it hot twice, but not consistent. Compression shows 79 psi but spark plugs are black (new plugs 2 years ago) Mower has new OEM carb (thought that was issue). Still seems to be flooding when trying to start hot. I have ordered new ignition coils - just throwing things at it now, tired of misdiagnosing. (way cheaper than new mower) I will keep at it until I get the problem fixed. Hope to report back soon with good news.
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If it has an ignition module it would cause a no spark when hot,Check for spark when hot after engine dies. Bad coils could would do that.
 
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