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#1544462 - 07/26/09 02:43 AM 8 hp briggs surging
nomochevys Offline

Registered: 11/26/05
Posts: 394
Loc: Ky
I drug this thing out and it has not run in 10 years literally.

Its amazing that I even got it started. It runs but surges back and forth. Is it running lean? Do I need to rebuild the carb? Im open for all suggestions. Thanks for any help.

#1544516 - 07/26/09 06:16 AM Re: 8 hp briggs surging [Re: nomochevys]
Char Baby Offline

Registered: 05/25/05
Posts: 8603
Loc: Rochester NY
Sound like the spring for the governer is week but at least it's working.
'80 Firebird FORMULA V8/4bbl-NEW
'06 Mazda 3i 2.0L-Pre Owned
'15 Nissan Altima 2.5 SV-CPO
Still looking for a car for my wife(new, used, CPO)

#1544524 - 07/26/09 06:58 AM Re: 8 hp briggs surging [Re: Char Baby]
punisher Offline

Registered: 09/11/04
Posts: 2194
Loc: snowblind in TX
Governor springs don't cause surges. It's runnning lean. Assuming a float carb, you might get away with a general cleanup/unplugging of the carb's internals. A carb rebuild is not a bad idea.

#1544617 - 07/26/09 09:35 AM Re: 8 hp briggs surging [Re: punisher]
hemitom Offline

Registered: 03/12/07
Posts: 771
Loc: canada
Just went through the same thing on 6.75 briggs that had been sitting for a few years. When i got it running it had surging issue's. what i did was pulled the carb off sprayed it with cleaner pulled the needle and seat out to check blew it all out with compressed air, put it back together add some techron to the tank and let it run about 20 minutes, ran fine. The next day started it again slight surge was back, so i pulled the float bowl off and there was small particules of what looked like hard water deposits or scale, anyways sprayed the carb again cleaned the main jet with plastic wire blew it all out now it runs like a charm. But after ten years its just as easy to rebuild the carb.

Edited by hemitom (07/26/09 09:36 AM)
2006 kia spectra
2006 chrysler 300 (gone to mopar heaven)
2007 hyundai sonata

#1545371 - 07/26/09 10:20 PM Re: 8 hp briggs surging [Re: hemitom]
c502cid Offline

Registered: 01/17/03
Posts: 790
Loc: Elizabeth. Colorado
make sure the air filter is clean. Clogged air filters will cause this too.
15 Chevy Trax AWD
10 Dodge 1500 5.7 hemi
02 GMC 3500 4x4 8.1/Allison
00 Chev Blazer 4.3
84 Chev K30 454 EFI
71 GMC Jimmy 502 RamJet

#1546420 - 07/27/09 10:51 PM Re: 8 hp briggs surging [Re: c502cid]
gonzo Offline

Registered: 07/05/09
Posts: 454
Loc: millington tn.
Buy new carb. kit. and clean or replace fuel tank.

#1547108 - 07/28/09 03:21 PM Re: 8 hp briggs surging [Re: gonzo]
tomcat27 Offline

Registered: 06/25/09
Posts: 2799
Loc: Midwest
its in the carburetor
2014 Sentra, 2005 Starcraft Aurora 2410, 2002 Echo
2002 Intrepid, 2002 Liberty, 1998 Dodge B1500
1996 Sebring Jx, 1995 Jeep ZJ, 1970 Cougar, 2001 Camry