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Discussion Starter #1
My z540r has only 5hrs on it but I notice when i start it for the first time when using it runs dirty for a minute or so. It emits some smoke and exhaust really smells. Is this normal during cold starts? Anything I can do to reduce this?

Thanks!
 

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Do you over-choke it? By that, I mean you still have the choke on after it starts. It also may be the choke setting is off some and not getting enough air at the time you start the engine. Try starting with the choke fully closed the first instant it starts and releasing the choke as soon as it runs.

Those cylinder heads are horizontal and oil collects combustion chamber when engine is off, and than it burns causing smoke at start-up.
 

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Discussion Starter #3
Do you over-choke it? By that, I mean you still have the choke on after it starts. It also may be the choke setting is off some and not getting enough air at the time you start the engine. Try starting with the choke fully closed the first instant it starts and releasing the choke as soon as it runs.

Those cylinder heads are horizontal and oil collects combustion chamber when engine is off, and than it burns causing smoke at start-up.
I don't believe I'm over choking it I only choke until it fires usually but there are times I have to choke longer to keep it running. Actually surprised how rough this engine is for this model and such low hours. Anything else I should check for? I wouldve expected these to be smoother and run cleaner!
 

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What years is the Z540? And if it is a year old or so, you still have a warranty. If that is the case have the dealer come get it and make the repairs.

If not as above, I would suggest you should look into the carburation and float settings, plus the settings on the coke cables. The valves setting usually cause rough running, but not the smoking at start-up.
 

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Discussion Starter #5
What years is the Z540? And if it is a year old or so, you still have a warranty. If that is the case have the dealer come get it and make the repairs.

If not as above, I would suggest you should look into the carburation and float settings, plus the settings on the coke cables. The valves setting usually cause rough running, but not the smoking at start-up.
Just got it in October there's about 5hrs on it. I'll have them take a look!
 

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Discussion Starter #6
Fired it up today to move around garage and same deal. This thing stinks! Took at least 30mins to clear smell from garage with door open and fan running.

Haven't had dealer look yet but I'm sceptical based on this is a carbed motor with minimal emissions equipment.

Are the efis any better? Or do the diesel models have a dpf?

I've fired up my 2032r a few dozen times this yeah in same garage and it's 1000% cleaner!
 

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Curious, is this the same 23.5 hp engine as in the Z920m? If so, mine does the same thing.

Sent from my SM-G930V using Tapatalk
 

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Curious, is this the same 23.5 hp engine as in the Z920m? If so, mine does the same thing.

Sent from my SM-G930V using Tapatalk

Come on guys, What is it with these 23.5 hp engine that give out horrible odors when starting? Just think for a moment on what is burning in those cylinder heads. Fuel...gasoline... and maybe some Stay-bill or such. If this is the case, we must rush to go Green to save the planet. If it's not oil, what is it?
 

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My z540r has only 5hrs on it but I notice when i start it for the first time when using it runs dirty for a minute or so. It emits some smoke and exhaust really smells. Is this normal during cold starts? Anything I can do to reduce this?

Thanks!
Your Z540R has the same Kawasaki FS730V as my X500. These engines are notorious for smoking when starting. If you close the choke and start cranking they will typically let out huge plumes of smoke and run a bit rough for a few seconds.

It was recommended to me to crank the engine for a second or two with no choke and then just momentarily close the choke to start the engine. As soon as the engine starts release the choke but continue to half-way "burp" the choke periodically until the engine stays running without choke.

This procedure should enable the engine to start without any smoke and run smoothly right away. It has eliminated all the smoke at startup on my X500.
 

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Discussion Starter #10
My z540r has only 5hrs on it but I notice when i start it for the first time when using it runs dirty for a minute or so. It emits some smoke and exhaust really smells. Is this normal during cold starts? Anything I can do to reduce this?

Thanks!
Your Z540R has the same Kawasaki FS730V as my X500. These engines are notorious for smoking when starting. If you close the choke and start cranking they will typically let out huge plumes of smoke and run a bit rough for a few seconds.

It was recommended to me to crank the engine for a second or two with no choke and then just momentarily close the choke to start the engine. As soon as the engine starts release the choke but continue to half-way "burp" the choke periodically until the engine stays running without choke.

This procedure should enable the engine to start without any smoke and run smoothly right away. It has eliminated all the smoke at startup on my X500.
I'll give that a shot! I have to run the garage fan for 30mins to get the dirty plume out of there after startup. Hoping this cuts it down a lot.
 

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I bought a new Exmark Radius x series 60" ultra cut with the FX730V motor and they delivered it with .5 hours on it. Mower sat all winter in my heated garage at 69 degrees. I had the fuel valve shut off.
Went to start it a few days ago to swap spots with my 1025R and it really smoked up my garage also. Next day I started it and the smoke wasn't as bad but i did call my dealer. He said the rings need to get seated on the new motor and then it should quit the smoking. So I had him document the smoking just in case there is an issue down the road. Oil on dip stick was down just a tick after sitting all winter compared to when they delivered it. Just my experience so far. He said by 15 hours they should be seated.
 

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I bought a new Exmark Radius x series 60" ultra cut with the FX730V motor and they delivered it with .5 hours on it. Mower sat all winter in my heated garage at 69 degrees. I had the fuel valve shut off.
Went to start it a few days ago to swap spots with my 1025R and it really smoked up my garage also. Next day I started it and the smoke wasn't as bad but i did call my dealer. He said the rings need to get seated on the new motor and then it should quit the smoking. So I had him document the smoking just in case there is an issue down the road. Oil on dip stick was down just a tick after sitting all winter compared to when they delivered it. Just my experience so far. He said by 15 hours they should be seated.
Please let us know how this progresses as you accumulate more hours. If I give it full choke my FS730V smokes just as much at 275 hrs as it did at 5 hrs. The secret is to crank 1-2 seconds with NO choke and then very briefly apply choke. It will then start right up with no smoke regardless of how long it has sat. Also, regardless of the smoke I have never noticed the oil level on the dip stick changing even the slightest.
 

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Please let us know how this progresses as you accumulate more hours. If I give it full choke my FS730V smokes just as much at 275 hrs as it did at 5 hrs. The secret is to crank 1-2 seconds with NO choke and then very briefly apply choke. It will then start right up with no smoke regardless of how long it has sat. Also, regardless of the smoke I have never noticed the oil level on the dip stick changing even the slightest.

Will keep you informed on the smoke.....as far as oil level going down i think it was from having the front cranked up for 6 hours applying multiple layers of Gempler's silicone grass shield on the underneath side of the deck.
 
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Discussion Starter #14
I think part of my problem was I had it at idle or just above idle when starting it. That would cause it to stall out without the choke and create excess carbon.

The manual talks about throttle start position. I can't find that.

How much throttle should be applied when starting the kawasaki? I think that'll limit the choke going forward with enough throttle to keep it running and get it out of the garage quickly.

Now that I know how to put it in neutral on the ztr, worst case I can push outside before starting.
 

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I think part of my problem was I had it at idle or just above idle when starting it. That would cause it to stall out without the choke and create excess carbon.

The manual talks about throttle start position. I can't find that.

How much throttle should be applied when starting the kawasaki? I think that'll limit the choke going forward with enough throttle to keep it running and get it out of the garage quickly.

Now that I know how to put it in neutral on the ztr, worst case I can push outside before starting.
I use a little under half throttle to start. Tried the choke trick Friday, it helped quite a bit with the smoke.

Sent from my SM-G930V using Tapatalk
 

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I use a little under half throttle to start. Tried the choke trick Friday, it helped quite a bit with the smoke.

Sent from my SM-G930V using Tapatalk

I did the same yesterday with mine and had no smoke this time.
 
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I have 5.2 hours on mower now. Did a regular choke at startup and still have some smoke but not as bad as when it had .5 hours on it. Just an update.
 

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Update on sooty startup on my new exmark with the fx730v motor. Was still getting a little smoke doing regular choke at 9 hours. Mowed for half an hour and then after engine cooled a bit i changed oil at 9.5 hours. Mower sat for 7 days and yesterday i did a regular choke startup and engine had no smoke.
 
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