Recent Topics
2015 Corolla with 7k miles has “soft brakes”
by NHBFAN - 07/04/20 12:30 PM
Put Bilsteins on the Silverado
by bdcardinal - 07/04/20 12:19 PM
Hour meter - not moving?
by Serge - 07/04/20 11:52 AM
Was in a Parade today!
by sasilverbullet - 07/04/20 11:40 AM
Amsoil bypass kit ford 6.7 (BMK33)
by willypete - 07/04/20 11:39 AM
Should I buy a "B" Temperature tire for 2016 Pilot?
by oily boyd - 07/04/20 11:15 AM
Happy 4th of July
by 4WD - 07/04/20 09:12 AM
Collective car nouns, real and imagined
by MrHorspwer - 07/04/20 08:44 AM
Motorcraft FL-820S, ~9000 miles
by robertcope - 07/04/20 08:42 AM
FJC Foaming Evaporator Cleaner Review
by Reddy45 - 07/04/20 12:10 AM
Ford 351W oil filter best value
by alex16 - 07/03/20 11:12 PM
Super tech euro 5w40 - Canada
by Johan1 - 07/03/20 10:19 PM
Strangers show up for vet's funeral.
by simple_gifts - 07/03/20 09:44 PM
Troybilt tb22ec refuses to run correctly
by Dogred08 - 07/03/20 09:43 PM
Harbor Freight Nitrile gloves
by 1978elcamino - 07/03/20 09:04 PM
Did anyone get a 25% coupon for July 4th?
by 1978elcamino - 07/03/20 08:58 PM
05 4.6 Northstar crank sensor re learn?
by cknight49090 - 07/03/20 08:40 PM
Newest Members
Johan1, MrMoneyMcLube, JeffAR, ThaKid22, Speedeuphoria
71843 Registered Users
Who's Online Now
79 registered members (bdcardinal, 2015_PSD, BAJA_05, aquariuscsm, 2010Civic, Ag76, 8 invisible), 1,929 guests, and 32 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
Kohler XT-7 (pressure washing) dying at sustained load/throttle #5449981 06/09/20 07:14 PM
Joined: Mar 2004
Posts: 2,168
92saturnsl2 Offline OP
OP Offline
Joined: Mar 2004
Posts: 2,168
I have a 8-9 year old pressure washer with a Kohler XT-7 (173cc IIRC) engine that is having trouble running at sustained load. It just started doing this last time I used it, but the problem is consistent.

It will run fine at its normal RPM (no load), but when you hold down the trigger on the wand for more than 7-8 seconds or so, the engine starts stumbling and will quickly die if you keep it held down. If you let the trigger go for a few seconds, you can continue for several seconds and it will run fine until you hold it down too long. If I reduce the RPM the pressure washer will run fine under load for long periods, so I presume this is a fuel starvation issue.

No fuel filter on this unit. Is there anything in the carb worth tinkering with that could cause this issue? Or is it cheaper/easier to just replace the carb and hope for the best?

96 Grand Prix SE 150k Chevron Delo 5w-40 Synthetic
04 Odyssey EX 205k Shell Rotella T5 10w-30
96 Maxima GLE 275k Mobil Super HM 5w-30
07 Chrysler Pacifica Limited 4.0L 151k Rotella T5 10w-30
Re: Kohler XT-7 (pressure washing) dying at sustained load/throttle [Re: 92saturnsl2] #5450139 06/09/20 10:27 PM
Joined: Jun 2009
Posts: 4,008
tomcat27 Offline
Joined: Jun 2009
Posts: 4,008
Gas tank vent?

2019 Cherokee, 2018 Jetta, 2014 Sentra, 2001 Camry, 1995 Escort, 1970 Cougar, 2013 XT250, 2010 Vstar, 2014 CTX1300
Re: Kohler XT-7 (pressure washing) dying at sustained load/throttle [Re: 92saturnsl2] #5450286 06/10/20 07:21 AM
Joined: Sep 2007
Posts: 920
Driz Offline
Joined: Sep 2007
Posts: 920
Loosen that cap and see. Otherwise it’s the infamous never ceasing plugged up carb venture. That tiny little plastic or brass tube an inch long above the fuel inlet seat has many microscopic holes across its sides that love to plug. Not sure Kohler has that design though but be aware for it. New carbs usually are cheap on Fleabay -$20 too.
To avoid most of the headaches get a pack of Fleabay 1/4” shut offs and Mount it in your fuel line, 5 are under $7. Shut it off with that if it’s going to sit. At the least run it dry at seasons end, layup ect.
Here’s what gas did to an under year old Toro bowl left with gas in it over the winter🤣 [Linked Image]
check out Project Farm on Youtube. He has an experiment on leaving gas in carbs on layup. Note none of the fuel storage additives really did much good !

Re: Kohler XT-7 (pressure washing) dying at sustained load/throttle [Re: 92saturnsl2] #5450290 06/10/20 07:29 AM
Joined: Mar 2004
Posts: 24,603
Donald Offline
Joined: Mar 2004
Posts: 24,603
Check the spark plug just because its easy. I have seen a gas filter screen inside a gas line. Governor?

2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Previous Thread
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™