Recent Topics
2009 Taurus strut mount noise
by terry274
Today at 04:38 PM
A3/B3 vs A3/B4, big difference or irrelevant?
by FordCapriDriver
Today at 03:36 PM
2003 Honda power steering problem
by hogpops
Today at 03:29 PM
Public Service Announcement: Flush Your HW Heater
by gathermewool
Today at 03:25 PM
Fellow 2AZ-FE toyota owners: what oil are you usin
by car51
Today at 03:21 PM
Castrol 0W40 vs 5W40??
by Realfine69
Today at 03:02 PM
Paint impurities on a new car
by Quattro Pete
Today at 02:49 PM
2014 Ram wheel FIT on a 2005 Ram?
by SumpChump
Today at 02:41 PM
Do people buy from telemarketers?
by Chris142
Today at 02:06 PM
TGMO 0W20, 8100km/5mo, 2013 Lexus GS350AWD 118K KM
by David_Corbett
Today at 01:54 PM
Sonoma Raceway
by Warstud
Today at 01:51 PM
Zipcode error
by aquariuscsm
Today at 01:36 PM
NHRA drag racing Racing question??
by daddi
Today at 01:33 PM
Milesyn 5w30 5 gal pails $50.94 w/prime
by Samrsnow
Today at 01:20 PM
Removing Broken Bathtub Drain
by Warstud
Today at 01:15 PM
Buffer Pads
by TheLawnRanger
Today at 01:10 PM
Recommend an oil to me... Pennz, M1, Castrol...?
by chinee
Today at 12:39 PM
Filter for Hydro Gear ZT2800 - Toyota???
by Lancruza
Today at 12:39 PM
Motul 5W30, 3000KM/12 mo, 06 Acura RSX-S 161K KM
by lemaitrix
Today at 12:38 PM
DeWalt dcf887b 3spd impact driver
by JC1
Today at 12:34 PM
Newest Members
crrider, EdDmax, 2018matto, Lancruza, IanSampson
65312 Registered Users
Who's Online
81 registered (55hambone, aquariuscsm, Bandito440, ArrestMeRedZ, 93cruiser, 2018matto, 3 invisible), 1572 Guests and 43 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65312 Members
67 Forums
285927 Topics
4771570 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4434512 - 06/17/17 06:32 PM BAD BOY zero turn Kohler oil leak
GMBoy Offline


Registered: 11/22/04
Posts: 7705
Loc: Texas
Just bought a brand new Bad Boy zero turn mower from tractor supply 2 weeks ago. It has the 725cc Kohler V-twin, 7000 series. Love the mower....but used it today for the 1st time and after mowing notice oil leaking from the engine. Looks like from the top and running down. I didn't take anything apart to see because I didn't want issues with warranty. I called tractor supply and the manager was great - said there is a known issue with the Kohler and to bring it back and they will exchange it for another one. That is great service - I don't have to bother with dealing with the manufacturer and having my brand new under 5 hour mower messed with.

My question - does anybody know about this known defect?? What is the change my replacement mower will do the same thing?

Top
#4434554 - 06/17/17 07:27 PM Re: BAD BOY zero turn Kohler oil leak [Re: GMBoy]
doitmyself Offline


Registered: 06/03/02
Posts: 6231
Loc: MI
Maybe he was talking about the service bulletin regarding the "smart choke" problems????

Top
#4434658 - 06/17/17 09:28 PM Re: BAD BOY zero turn Kohler oil leak [Re: GMBoy]
Kruse Offline


Registered: 10/05/05
Posts: 4298
Loc: Kansas
Originally Posted By: GMBoy

My question - does anybody know about this known defect?? What is the change my replacement mower will do the same thing?


Not sure if this affect your particular mower, but Kohler engines have a problem where the bolts that hold the top part of the engine to the lower section loosen up. The fix to this is remove the flywheel to access these bolts and tighten them up.
Of course, this would be a warranty issue.

Top
#4435378 - 06/18/17 06:30 PM Re: BAD BOY zero turn Kohler oil leak [Re: GMBoy]
GMBoy Offline


Registered: 11/22/04
Posts: 7705
Loc: Texas
I read about the 2 issues mentioned above. I think its the valve cover leaking but I don't want to take anything apart to make them change their mind exchanging it tomorrow. I appreciate the responses.

Top
#4435458 - 06/18/17 07:56 PM Re: BAD BOY zero turn Kohler oil leak [Re: GMBoy]
dieselfarmboy Offline


Registered: 06/07/15
Posts: 20
Loc: md, usa
After seeing the used stuff TSC has in there for sale at times I think they take anything back under warranty. Saw a cub cadet trimmer that you could tell had been used HARD for MANY hours and they was still trying to get $50 for it.

Top
#4435668 - 06/19/17 07:30 AM Re: BAD BOY zero turn Kohler oil leak [Re: dieselfarmboy]
GMBoy Offline


Registered: 11/22/04
Posts: 7705
Loc: Texas
Originally Posted By: dieselfarmboy
After seeing the used stuff TSC has in there for sale at times I think they take anything back under warranty. Saw a cub cadet trimmer that you could tell had been used HARD for MANY hours and they was still trying to get $50 for it.


I see you are from MD. That's where I was born and raised and lived most of my life. I live in Texas now but don't miss MD politics, crime, taxes and gun laws but I do miss the seafood!

Top
#4437455 - 06/21/17 10:24 AM Re: BAD BOY zero turn Kohler oil leak [Re: GMBoy]
JTK Offline


Registered: 08/14/03
Posts: 10592
Loc: Buffalo, NY
Could have been something simple like a detached breather hose or something askew with the breather assembly on the top of the block. Couple that with slightly overfull oil (which they tend to be) and oil is going to puke all over. The V-twins don't have the block cover like the Courage single cyl. Very few issues with the V-twins, even the cheaper ones.
_________________________
2017 Ram 1500 4x4, 3.6L. 2016 Nissan Quest SV (Babe magnet IV)

Top
#4437548 - 06/21/17 11:57 AM Re: BAD BOY zero turn Kohler oil leak [Re: GMBoy]
jeepman3071 Offline


Registered: 04/15/10
Posts: 4220
Loc: Storrs, Connecticut
Originally Posted By: GMBoy
Just bought a brand new Bad Boy zero turn mower from tractor supply 2 weeks ago. It has the 725cc Kohler V-twin, 7000 series. Love the mower....but used it today for the 1st time and after mowing notice oil leaking from the engine. Looks like from the top and running down. I didn't take anything apart to see because I didn't want issues with warranty. I called tractor supply and the manager was great - said there is a known issue with the Kohler and to bring it back and they will exchange it for another one. That is great service - I don't have to bother with dealing with the manufacturer and having my brand new under 5 hour mower messed with.

My question - does anybody know about this known defect?? What is the change my replacement mower will do the same thing?


I've fixed a few valve cover leaks on those Kohler Courage V-Twins. Leaking valve covers is a common issue. If left alone it will get bad enough where it drips on the exhaust. I had that happen on one with 200 hours on it. Upon pulling the valve cover, it appears Kohler uses some kind of RTV type sealant, but they don't use enough. I resealed both covers while I had it apart and it has been good since.
_________________________
2000 Jeep Cherokee 4.0L (180k) - Pennzoil 10w30, Napa Gold 1516, Magnefine trans filter
2009 BMW 328i (32k) - Castrol Edge Euro 0w40, MANN HU816X

Top
#4438339 - 06/22/17 09:05 AM Re: BAD BOY zero turn Kohler oil leak [Re: jeepman3071]
GMBoy Offline


Registered: 11/22/04
Posts: 7705
Loc: Texas
Originally Posted By: jeepman3071
Originally Posted By: GMBoy
Just bought a brand new Bad Boy zero turn mower from tractor supply 2 weeks ago. It has the 725cc Kohler V-twin, 7000 series. Love the mower....but used it today for the 1st time and after mowing notice oil leaking from the engine. Looks like from the top and running down. I didn't take anything apart to see because I didn't want issues with warranty. I called tractor supply and the manager was great - said there is a known issue with the Kohler and to bring it back and they will exchange it for another one. That is great service - I don't have to bother with dealing with the manufacturer and having my brand new under 5 hour mower messed with.

My question - does anybody know about this known defect?? What is the change my replacement mower will do the same thing?


I've fixed a few valve cover leaks on those Kohler Courage V-Twins. Leaking valve covers is a common issue. If left alone it will get bad enough where it drips on the exhaust. I had that happen on one with 200 hours on it. Upon pulling the valve cover, it appears Kohler uses some kind of RTV type sealant, but they don't use enough. I resealed both covers while I had it apart and it has been good since.



Thank you! That is the information I needed to hear and thanks! So far the replacement mower is oil leak free but if it happens again I will probably reseal it myself rather than the hassle of warranty repairs.

Top
#4438344 - 06/22/17 09:08 AM Re: BAD BOY zero turn Kohler oil leak [Re: JTK]
GMBoy Offline


Registered: 11/22/04
Posts: 7705
Loc: Texas
Originally Posted By: JTK
Could have been something simple like a detached breather hose or something askew with the breather assembly on the top of the block. Couple that with slightly overfull oil (which they tend to be) and oil is going to puke all over. The V-twins don't have the block cover like the Courage single cyl. Very few issues with the V-twins, even the cheaper ones.


Good point and something I should have checked. I'm glad the engine should be mostly trouble free.

Top
#4438464 - 06/22/17 11:41 AM Re: BAD BOY zero turn Kohler oil leak [Re: GMBoy]
dave123 Offline


Registered: 01/13/09
Posts: 2317
Loc: wi
I've been very happy mine is same engine on SCAG mower very strong running manual choke always pops right off using Amsoil ASE and always E0 1oz Red Line SI-1 per 5 gal fuel.

Top