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To repair a Briggs & Stratton 4.5 hp engine with low compression, first, perform a compression test to confirm the issue. If compression is low, check for potential causes such as worn piston rings, a damaged cylinder, or a blown head gasket. You can remove the cylinder head to inspect these components, replacing any damaged parts. Reassemble the engine, ensuring all gaskets are properly sealed, and retest the compression to verify the repair.

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Related Questions

How do you repair valve compression ring 18 hp Briggs stratton?

You don't repair compression rings you replace them.


Who does Briggs and stratton contract to build their snapper mowers?

Briggs and Stratton does contract anyone to build mowers. The mower manufacturers contract Briggs and Stratton to build their engines (or whatever engine is on the unit). That is why you can have a Briggs and Stratton on most any type of mower. Same is true for Kohler, Tecumseh, etc. Not to say that the engine manufacturers do not build their own type of outdoor power tool but as the question states "snapper mower". Also keep in mind that if you have a snapper mower with a Briggs and Stratton engine and you need warranty work on the engine you need to go to an Authorized Briggs repair facility where as if you have a mower warranty then you need to go to an authorized repair facility for the mower manufacturer.


What is the hp of a 342cc Briggs and stratton engine?

Based on everything I have read from Brigs and Stratton, and talking with some small engine repair guys I know, the 342cc engine puts out about 11-12hp, and the 420cc engine is about 15hp. Hope this helps.


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If you mean Briggs and Stratton model 193702, then you want Briggs Stratton Carburetor Part No. 491590 It costs less than $150 USD. Check out http://www.smallenginesuppliers.com or the Briggs and Stratton website.


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One can purchase parts for a used Briggs and Stratton lawn mower from the following sources: Mower Graveyard, eBay, Briggs and Stratton, Zangler Repair, Lowes, Discount Online Parts.


Why does your Briggs and stratton engine not start?

bad gas, dirty carb needs new sparkplug. youtube has repair vids on how to do what. user (davidsfarm) has great tips


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