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Engine will turn over once and then stop. By bumping starter it will turn over again once and stop. Acts like too much compression. Have had this problem in the past and taken to the shop and had repaired several times. Am tired of the expense of repairs. Mower is old (2001)but runs good. Have asked the repair shop what causes this and was told carburation and valve timing. If so how do I adjust valve timing?

the overhead valve engine requires a valve adjustment occassionally, this is done by removing the valve cover, turning the engine to top dead center on the compression stroke and going past top dead center 1/4". then with a feeler guage you set the valve clearance to .004, you can purchase a repair manual from your nearest Briggs & Stratton dealer that instructs you step by step on how to do this, the manual is less than $20.00 and is a great investment for a doitselfer.

2008-06-15 17:25:31 by Jus{hug}Me

HOW TO REPAIR the PULSA PRIME Carburetor on Lawnmowers with with Briggs amp; Stratton engines. Visit my channel for more repair videos; www ...

It starts ok but it speeds up and down as I mow. It won't just run at a single speed. I hear neighbor's mower's engine's do this after a few years of use. Is there anything I can do besides the usual cleaning of air filter, oil change, spark plug is new as is the new blade. This is the third summer it has been used. Local repair shops don't seem to know what to do. One guy put a wire through the butterfly to hold it open.
Let me clarify my question: As I mow, the engine speeds up and down, up and down, up and down. This is one of the newer engines with no adjustments and a prime button to push before cranking. As I said, the neighbor's mower's engines do this too. No one around here knows what to do. We have two of our older mowers in the garage which have developed this same problem. We replaced them for this reason. You can mow with it, but it speed up fast, and then down slow, up and down in a cycle as you push it.. The cable is lubricated and is opening the butterfly valve open as usual. It's just this speeding and slowing of rpm's that no one know about. Thanks so much for your help!

It does sound like the Governor is messed up. That wire in the butterfly is that the governor and if so that's probably not a good idea. The engine should have the governor open and close depending on how hard it sucks the air and gas in and a spring at the right tension has to be working. I would look into that spring on the governor.

2008-04-29 17:08:05 by SuperCityRob

Price: $28.38 $16.45

5-pack of 491588S
Briggs Stratton 4101
Use on 3.5-6.5 HP Quantum engines, 625-1575 series

I do not have a manual. There is no warranty that I am aware of. There is no man around to help me. It's Saturday so the repair shop is closed. I need to get my lawn mowed...it's fixing to rain. Help!

The governor spring goes from a lever on the side of the engine to an anchor point. Usually there are several holes in the lever, start with one around the middle. The anchor point is usually a small sheet metal tab with a hole, but might be something else. Hook one end of the spring into the middle hole on the lever, and look for the anchor point on either side of the lever, just far enough to where you have to stretch the spring a little to get to it. It helps to use a needle nose pliers to grab the end as you hook it, as it is sometimes in a tight place. If, after you put it on, the spring is rubbing on anything, it is probably on backwards.
If the spring is missing the hook on one end, that means it broke off. Use the needle nose pliers to bend a new hook, and strech the spring a little to compensate for the lost length.

2009-04-18 13:26:36 by Shotzie

Price: $16.99 $7.99

Replaces Briggs Stratton Service Part no.499486S (Air Filter) and no.273638S (Pre-Cleaner)
Genuine Briggs Stratton Part
For 18 through 26 Horsepower Intek V-twin Engines

i just got a real good deal on a commercial snapper riding mower that needed some rear end work done on it. otherwise the engine and mower are in excellent shape. i need to get a repair/maintenance manual for the mower and the briggs&stratton ohv engine. i do not want one of the generic/ all mower manuals that clymer sells!! i want one that is specific for my mower!! any help????????????thanks!!!!!!

Go to the Snapper website at:

http://www.snapper.com/#

In the upper right hand corner click on "publications". In the window that pops up, enter the information (model number etc.) that is asked for and you will be rewarded with PDF copies of the manuals you need.

Good luck with your repair.

2006-06-28 19:15:39 by teejay

The pull cord broke on my Briggs & Stratton 5 HP engine. I have threaded the cord back into the pully but the rewind will not work. Is there something I'm missing or is the rewind spring broken also? Will I need to replace the entire housing?

Your spring has sprung. You need to recoil the spring. I've done it & yes it will take 3 hands.

2008-05-12 06:14:39 by railroad guy