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(UPDATE) OB Mechanics and ZTR experts assemble

Posted on 7/13/15 at 9:21 am
Posted by tenortoga
Member since Dec 2007
480 posts
Posted on 7/13/15 at 9:21 am
I have a Kubota ZTR. Runs fine when the blade is not engaged. When I engage the blade (but sit stationary) the entire mower vibrates and the engine speed drops. When I start to move, the engine speed drops way down and the mower will only move about 10 feet before it kills. Any suggestions? The fuel filter was replaced about 2 months ago. Also while it was doing the this the engine backfired a couple of times.

**UPDATE**
Looks like it was bad gas. Poured 1/2 a can of seafoam into the gas tank and ran it for a few minutes to get it to the engine. Shut it off and let it sit for 10. Cranked it back up and it ran like a champ. Thanks for all the help!
This post was edited on 7/15/15 at 8:16 am
Posted by ClarkGriswold
Member since Oct 2005
588 posts
Posted on 7/13/15 at 9:47 am to
(no message)
This post was edited on 3/27/21 at 8:47 am
Posted by meauxjeaux2
watson
Member since Oct 2007
60283 posts
Posted on 7/13/15 at 10:05 am to
sounds like a bad muffler or a bad accelerator pump in the carb. Or maybe the governor has somehow come out of adjustment.

Posted by BiggerBear
Redbone Country
Member since Sep 2011
2934 posts
Posted on 7/13/15 at 10:32 am to
Have you checked the blades to make sure their clear and there's not some electrical cord, hay rope, fishing line wound up in them?
Posted by White Bear
Yonnygo
Member since Jul 2014
14270 posts
Posted on 7/13/15 at 11:51 am to
Water in fuel, trash in carburetor jet/s? My godevil would run great in the yard, but wouldn't pull the hat off your head in the water/under load - I had trash in one carb jet. If it has manual choke see if it will run half choked or so.
This post was edited on 7/13/15 at 11:53 am
Posted by cgrand
HAMMOND
Member since Oct 2009
39275 posts
Posted on 7/13/15 at 2:32 pm to
What did the Kubota dealer tell you when you called them?
Posted by ToulatownTiger
Louisiana
Member since Oct 2012
4597 posts
Posted on 7/13/15 at 3:18 pm to
This has happened to the kubotas we use at work multiple times. Anything from fuel filter, to fuel line, to blown cylinder

Also lift your back hatch and check the screen that covers the fan. If clogged it will do that
This post was edited on 7/13/15 at 3:19 pm
Posted by tenortoga
Member since Dec 2007
480 posts
Posted on 7/15/15 at 8:14 am to
**UPDATE**
Looks like it was bad gas. Poured 1/2 a can of seafoam into the gas tank and ran it for a few minutes to get it to the engine. Shut it off and let it sit for 10. Cranked it back up and it ran like a champ. Thanks for all the help!
Posted by Stexas
SWLA
Member since May 2013
6071 posts
Posted on 7/15/15 at 8:51 am to
quote:

**UPDATE**
Looks like it was bad gas. Poured 1/2 a can of seafoam into the gas tank and ran it for a few minutes to get it to the engine. Shut it off and let it sit for 10. Cranked it back up and it ran like a champ. Thanks for all the help!


Good deal!
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