Well having issues with a brand new Outlaw XP with the Yamaha engine. First of the trailer mower started smoking badly went back to dealer, Dealer said was oil in muffler lol.. We used mower for 15 more hours mower started smoking again after 20 hours. Found out Yamaha had recall with reed valve. Dealer replaced reed valve that's when the issues started. When trying to start engine just locks up. sometimes it will crank run fine most of the time no chance. Battery voltage good they changed key and crank shaft position sensor still no go. The mower has less than 30 hours on it has been in shop 4 or 5 times I forget. At this point im trying to get a new mower but not getting any help from dealer or Bad boy. Any other Yamaha owners out their having issues?
Bad boy issues Yamaha
parkj5
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Well having issues with a brand new Outlaw XP with the Yamaha engine. First of the trailer mower started smoking badly went back to dealer, Dealer said was oil in muffler lol.. We used mower for 15 more hours mower started smoking again after 20 hours. Found out Yamaha had recall with reed valve. Dealer replaced reed valve that's when the issues started. When trying to start engine just locks up. sometimes it will crank run fine most of the time no chance. Battery voltage good they changed key and crank shaft position sensor still no go. The mower has less than 30 hours on it has been in shop 4 or 5 times I forget. At this point im trying to get a new mower but not getting any help from dealer or Bad boy. Any other Yamaha owners out their having issues?
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12 Posts
I just wanted to add to my post that im not bashing anyone at all dealer is working on issues looks like they going to replace complete engine. They not very good on the communication part but seem to be trying everything in there power to make me happy. even bringing me a loaner. Love the power of the Yamaha and the ride of the Outlaw XP,
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Just bought a Yamaha efi gravely first time mowing with it today brand new started smoking so I shut it off. Dealer came and got it at the yard and brought me the loaner. Just seeing if you ever got yours resolved and if so what was causing it to happen.
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They run 4500-5000 hrs in testing. They just called me and said it's the recalled reed valve. When they came and got it they changed the spark plugs and it started right back up and they put it on the trailer to take back to the dealer.
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17,351 Posts
i find that hard to believe. my kawi engine blew up at 1200hrs. engines are complete crap these days. there almost always seems to be some "faulty" part or something like that.
what is a reed valve? never heard of that before.
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1,010 Posts
in most engines it is a $4 part that looks not much different that a thin piece of metal. There is one per cylinder and they help control crankcase vacuum. In a kohler sometimes they will fail or stick and the engine will burn oil bad.
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That's what mine did yesterday and they fixed it today first thing this morning. The old one was a recalled valve and it's running like new again.
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The valve keeps oil from getting into the crank case while letting air through and the bad ones were letting oil through which is obviously what made it smoke and fouled the spark plugs.
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Yup. Fixed and back to me in 24 hrs so I'm not to upset. The mechanic at my gravely dealer worked in Florida at gravelys testing facility the past 2 years and he confirms that he personally saw the Yamaha's with 4500 hrs before going out and they were using automotive oil from walmart.
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17,351 Posts
if that's true then kawi, kohler, and vanguard will be out of business very soon since their engines don't even last half that long.
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I've got 1500 on a kawi now and not ever had a single issue. I've seen plenty of Kawis with 3000 on them. But we will see how these Yamaha's hold up. Took a little bit of a chance but Yamaha's engineering in all their other small engines has always been some of the best.
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Yes I have a 2020 rogue with Yamaha power that I bought new and it just died on me, fuel pump not working so I'm trying to research it now, but no problems for 4 yrs
Member has not been active in 6 years.....
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Motor cranks normal just no fire in the hole
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No fuel pressure
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