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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26739
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Ok! rzt club cadet mod.1b016620070 /621-643 / 17aa5d7p756.

Customer Question

ok! rzt club cadet mod.1b016620070 /621-643 / 17aa5d7p756.
engine #fh661va26094a205 /Kawasaki fh661v 22.0hp 675cc.
the machine is 10 yrs old, this is the very first problem. how can I fix this surging problem. I repair all my equipment.
my E-mail***@******.***
Submitted: 6 months ago.
Category: Small Engine
Expert:  Curtis B. replied 6 months ago.

First I would test the cylinders! Loosen the spark plug wires, then with engine idling, remove one wire at a time,engine should continue to run, If engine dies when one wire is removed, the opposite cylinder is not firing. If not firing check for spark. No spark on kawaski is usually a bad coil. If engine does not have dead cylinder, then the surging is a lack of fuel, check the fuel supply from tank to the fue pump.

Customer: replied 6 months ago.
Curtisyou , what you suggested above I did an also re checked each step with no results. just for reference I cut 8 acers with this machine, never had this problem.
Expert:  Curtis B. replied 6 months ago.

Was engine surging when test were done? Did you try a test line from the fuel pump inlet, back into the fuel tank filler, to see if it is fule supply problem?

Customer: replied 6 months ago.
I did the above. No problem with the fuel.
Expert:  Curtis B. replied 6 months ago.

Does adding choke make any difference? Have the valves ever been adjusted? .006 inch. intake and exhaust

Customer: replied 6 months ago.
For reference yesterday I cut 1/2 acre no problem?
Expert:  Curtis B. replied 6 months ago.

oK> So it is not always doing it.??

Customer: replied 6 months ago.
This is the first ever. Thanks for your sujestions. I will figure it out, have a good night.
Expert:  Curtis B. replied 6 months ago.