Why does my new 19hp bog more than my old 17hp?

[hoovail]

I just replaced a 2007 17hp Kawasaki FH541V with a new 19hp Fh580V. The engine runs great until I'm in tall grass and/or climbing a hill. It seems like the new, bigger, engine bogs down slightly more than the old 17hp engine. Could it be because of the new stricter emissions? Are there any adjustments I might have overlooked?

Also I'm at a high altitude, and would benefit from a different jet. Where can i get one of these?

[pugs]

Originally Posted by hoovail

I just replaced a 2007 17hp Kawasaki FH541V with a new 19hp Fh580V. The engine runs great until I'm in tall grass and/or climbing a hill. It seems like the new, bigger, engine bogs down slightly more than the old 17hp engine. Could it be because of the new stricter emissions? Are there any adjustments I might have overlooked?

Also I'm at a high altitude, and would benefit from a different jet. Where can i get one of these?

What altitude are you at? That might be the cause. The OEM may put high altitude jets in when they sell the machine to a certain location. However I doubt Kawasaki does that with replacement engines because they dont know where they are ending up.

Honestly the FH541 and 580 are basically the same engine. Probably just a different carb casting.

[hoovail]

I'm hoping that the different carb is that extra 2 HP I'm looking for!

I'm high enough to need a different jet! I'm at 8,000 ft. Where can I get the correct one?
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[jtsnipe]

Your old carb off the FH541V ?

[hoovail]

Would the jets swap, on 2 different carbs?

[pugs]

A Kawasaki dealer should be able to get you a high altitude jet for your engine.

In your area they may actually stock them just because they run into this more than any other part of the country.

[BDLandscapes]

Originally Posted by hoovail

Would the jets swap, on 2 different carbs?

They swap, but Kawasaki specs a different main jet for the 541V vs 580V per given altitude range.

From the service manual;
FH580V - ALTITUDE - FH541V
#98 - 6000ft+ - #96
#100 - 3000-6000ft - #98
#105 - 0-3000ft - #100

The main jet # is stamped on the end of the jet.

Replacement kit can be purchased from any Kawasaki dealer.

#105 part number; 92063-7037
#100 part number; 92063-7046
#98 part number; 92063-7047


*Note: Some part list breakdowns for various spec numbers list different jets than the service manual.
Get the spec number off your engine (FH580V-XXX) then just browse the parts catalog to confirm the jet size you need;
http://kmcb2c.econnect.partsandwarra...MBEROFITEMS=63
(Find spec number, then go to carb to see the jets. Smaller jet for higher altitude)

[hoovail]

∆∆

Thank you, that is great information!

I have been doing some research on this, and thought I found the correct jet for my FH580V-ES21-S. Here is what I found.

JET-MAIN,#108, PN 92063-7066
JET-MAIN,#106,3280FT, PN 92063-7090
JET-MAIN,#104,6560FT, PN 92063-7091

Does this sound right?