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About Eric A. Jones
Expertise
Lawnmower Repair . Certified Master Service Technician from B&S. Have 13 years experience on B&S, Lawn Chief, Weed Eater, Echo, Peerless, Wheel Horse, Snapper, Atlas, MTD, McCulloch, Homelite and many other numerous brands. Specialize in electrical repair.
Experience
Born and raised in the midwest. Started tinkering with engines when I was about 14 on my Suzuki RM-80. I began lawn mower repair at a small hardware store. I knew absolutely nothing. I read lots of repair manuals and met an older fellow who taught me many lessons. I continued working on small engines through high school and paid my way through college working on mowers at the same hardware store. Decided to get away from the midwest and mower repair so I joined the Air Force. I repaired air traffic control electronic equipment and ended up in Hawaii where I got a part time job at Small Engine Clinic. I gained a lot of experience from the Small Engine Clinic and had a blast repairing small engines. I then took the Briggs and Stratton Master Service Technician test and earned my MST. I then traveled to Wisconsin where I attended the factory update training seminar and received formal training. I received a scholarship from the Air Force and am currently pursuing another degree.
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You are here: Experts > Home/Garden > Home Appliances > Small Engines (Lawn Mowers, etc.) > 8 hp Briggs with glowing muffler
Expert: Eric A. Jones
Date: 9/18/2008
Subject: 8 hp Briggs with glowing muffler
Question
Hi,
I have an 8 hp Briggs&Strattion
Model Type Code
190417 3093-01 89012510 on a Homelite generator.
This is a new aquisition and it it driving me crazy. When I purchased the unit I was told it hadn't run in years. A little gas and a fresh battery and off it went. Unit sounds good turns over fine and starts quite easily. Once it runs for approx 10-15mins the muffler is glowing red at the bottom. I tried adjusting the carb with no results. I then swapped the carb with one I had on another motor and started the unit the next morning after sitting all evening, same results muffler started glowing after 10-15 minutes. The motor sounds fine it just doesn't seem right. I pulled the head everything looks fine there, the valves appear to be opening and closing all the way. I plan on hand lapping them just incase but I do not feel it will correct my problem. Would you be able to point me in a direction? Any help you could provide would be greatly appreciated.
Thank you
Kind Regards
Bart
Answer
Running way too lean or not cooling properly. Have you removed all the sheet metal to make sure rodents have not built homes inside the cooling fins on the flywheel and engine block?
Check the valve clearance. Here is the spec link:
http://www4.briggsandstratton.com/miscpdfs/RNT/Engine%20Specifications%20Chart_m...
Are you using SAE-30 oil?
Let me know.
Eric
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