PDA

View Full Version : Kawasaki engine (fh601v) troubleshooting


blabarre
08-10-2011, 03:26 PM
I have a jd 717a with a 19 hp kawi engine. The issue I've been having is when I go to crank the mower up, whether its warm or hot, it sputters and backfires. I will lower the throttle and it will straighten out and if I ease the throttle up it will not sputter. It also does this when I engage the blades. If I can ease the throttle up and get it to full throttle it will do fine. The only time it does this is at startup and when I engage the pto. Any thoughts would be greatly appreciated. I have mixed some seafoam in the gas to help but it had no affect. The mower has 190 hrs on it. Thanks
Brian
Posted via Mobile Device

Restrorob
08-11-2011, 06:50 PM
Brian, Can you look on the side of your engine and get me the spec number ?

http://i107.photobucket.com/albums/m314/Restrorob/Kawasaki/FH/KawiModelNumberDecal.jpg

blabarre
08-11-2011, 11:40 PM
Fh601v -bs32-r
Fh601vc29924

These are the two numbers on that sticker
Posted via Mobile Device

topsites
08-12-2011, 02:53 AM
When's the last time the air filter and spark plugs were changed, and if it has
been longer than you can remember, maybe it's time.

blabarre
08-12-2011, 08:30 AM
Air filter was done seventy hrs ago. Spark plugs not sure...
Posted via Mobile Device

blabarre
08-12-2011, 08:33 AM
I have a canister filter. Doesn't look terribly dirty. How do u know when it needs changed out?
Posted via Mobile Device

Restrorob
08-12-2011, 11:19 PM
How do u know when it needs changed out?


When the paper is nasty brown looking and a abundance of sand falls out of the pleats when it's tapped against the rear tire.

Check your PM's..... Thumbs Up

pugs
08-13-2011, 12:34 PM
Brian, Can you look on the side of your engine and get me the spec number ?

http://i107.photobucket.com/albums/m314/Restrorob/Kawasaki/FH/KawiModelNumberDecal.jpg

Why do you want the numbers? Its on a JD... Just curious.

blabarre
09-11-2012, 03:02 PM
Well hate to revive this old thread, but my issue still hasn't been resolved. When I got the mower going at the beginning of the year, it did not sputter at all or backfire. I took it in to get serviced and the carburetor cleaned, and within a few weeks of getting serviced, it starting the sputtering and backfiring again. It has been doing it all season. I try to use ethanol free gas to see if that could be causing it, but it still does it. Any other thoughts on what it could be? I've seen other threads mentioning bad ignition coil, bad intake mounting gasket, and valve adjustments... does my issue sound like it could be from one of those factors?

Restrorob
09-11-2012, 09:33 PM
Brian,

It could be any you mentioned, You can check the intake gaskets by spraying carb & choke cleaner around the intake while it's running and listen for a change in RPM's.

Test the coils as below with a multimeter;

http://i107.photobucket.com/albums/m314/Restrorob/Kawasaki/FH/FH451721CoilTest.jpg


Adjust the valves as below;

http://i107.photobucket.com/albums/m314/Restrorob/Kawasaki/FH/ALLFHSeriesValveAdjustment.jpg

blabarre
09-11-2012, 10:16 PM
Thanks restrorob. Very helpful. I will try and do these as soon as I get some downtime.
Posted via Mobile Device

blabarre
09-11-2012, 10:17 PM
Would you happen to have a diagram of how to tear apart my carb? I would like to attempt it myself but I don't wanna tear anything up.
Posted via Mobile Device

grassmaster06
09-11-2012, 10:51 PM
I had a similar problem with my fh 601 v ,so I took it the shop and they changed the gas rebuilt the carb installed 2 new coils and still sputered ,so next they pulled the engine apart to check the crank and governor and whatever else he thought.so they put it back together and no difference,so they changed the wiring harness and no change .so after two week out of service the mechanic had no idea what was wrong ,he put two used coils from a 15 hp kaw and it runs fine now .he has no explanation but it's been running great

Restrorob
09-11-2012, 10:58 PM
Didn't you just have the carb cleaned ?

This is all I've got on it, The MOST important thing is DO NOT mix the jets up when you remove them. They're different sizes per side.....


http://i107.photobucket.com/albums/m314/Restrorob/Kawasaki/FH/Kawi2BBLCarbClean1.jpghttp://i107.photobucket.com/albums/m314/Restrorob/Kawasaki/FH/Kawi2BBLCarbClean2.jpg

Restrorob
09-11-2012, 11:00 PM
I had a similar problem with my fh 601 v ,so I took it the shop and they changed the gas rebuilt the carb installed 2 new coils and still sputered ,so next they pulled the engine apart to check the crank and governor and whatever else he thought.so they put it back together and no difference,so they changed the wiring harness and no change .so after two week out of service the mechanic had no idea what was wrong ,he put two used coils from a 15 hp kaw and it runs fine now .he has no explanation but it's been running great


Just wondering...... What did this "shop" charge you for all the guess work ?

blabarre
09-11-2012, 11:49 PM
Thanks restrorob! I did have the carb cleaned by a shop in march. I just figured rather than pay them another 100 bucks to do it again, I will do it and save myself a little money. I figured it is probably due for another cleaning.
Posted via Mobile Device

grassmaster06
09-12-2012, 09:02 PM
$450 for the guess work

Restrorob
09-12-2012, 10:09 PM
Ouch ! :gunsfirin