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Oh and I’ll add that the reason I’m not adjusting the valves myself is because the orientation of the engine in the mower severely restricts access so the motor needs to come out and I’m not set up for that.

I’m actually thankful my mower acted up. Forced me to fix things along the way I didn’t know were wrong. I had a mouse nest on one coil 😂. I do think this surging may be the valve adjustment on the exhaust valve. I also think I have a timing issue. But, I did clean my crank case, replace coils...

I have a mechanic coming Wednesday to look at it. Mine has 1,000 hours

Nothing in the filter other than fuel and flows freely

It’s a brand new carb

It has new plugs and coils. New head gaskets?

Kawa FX730V. Thanks I’ll check the bolts on the carb. I ran it another 1.5hrs with the idle screw adjusted and it ran the entire time. It did struggle to start when I stopped half way through. When it doesn’t start, what happens is; I turn the key, it makes a noise like it’s about to turn over...

Mowed another acre or so with no issues. Throttle pulled back from max just a touch. Do you all think it’s just the governor high idle screw adjustment?

Ok so this damned thing is down again. Started first time today then died. Got it started again and mowed a little. Started surging so I looked around and could see the governor bobbing up and down. Adjusted the throttle down an little and stabilized it. Ran for another few minutes and stopped...

Struggled to start. BUT… good news. Went to check the battery before checking the timing today and noticed the fuel filter was cracked where the “spout” meets the main barrel. Battery was fine, so I changed the fuel filter and mowed about 2 acres with no issues. Even stopped a couple times and...

Used a business card as a spacer. Also the solenoid is new, it clicks. Someone said that if it struggled to turn over after it was ran, it could be gas getting into the oil? I plan to check the timing as suggested above.

I’m not sure how to do this?

Yes

Well it was running great, better than ever actually. I mowed for 20 mins and then stopped to talk to my wife. Killed the engine while we talked and the. Got back on 5 mins later. Now it won’t start?!?!

Well I changed the plugs and it started. Ran at pretty low rpm for a few minutes and would die when driving forward. Did that twice and then started running normally third time. It’s raining here so can’t run her for a few days so will see…

I sprayed starter in the intake and still nothing. Will try changing the plugs but I am getting a spark at both with a tester attached.

Yes, from dealer

I have a Lazer Z with the Kawasaki FX730 motor. It was surging and stalling frequently. Would run choked even with PTO engaged but eventually die. I replaced the easy stuff (fuel pump, filter, air filter) and then changed the oil and oil filter. Still having problems so I tested the spark plugs...