Question about kawasaki Fh641v 21hp 21 Hp Riding Lawn Mower Engine ()

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How do I determine horsepower by serial number?

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A quick explination of how to tell how big a Kawi is the model number. Those ending in 0 are the rough displacement (cc's) of the engine, those ending in 1 are a up or down hp version of the 0's in the same family. A quick explination of how to tell how big a Kawi is the model number. Those ending in 0 are the rough displacement (cc's) of the engine, those ending in 1 are a up or down hp version of the 0's in the same family. A quick explination of how to tell how big a Kawi is the model number. Those ending in 0 are the rough displacement (cc's) of the engine, those ending in 1 are a up or down hp version of the 0's in the same family. all aa





check your engine model #
all fh641v series 675 cc 21 hp

Specs: HP cc Bore x Stroke

FH480V 16HP 472cc 68mm x 65mm
FH541V 17HP 585cc 74mm x 68mm
FH580V 19HP 585cc 74mm x 68mm
FH641V 21HP 675cc 75.2mm x 76mm
FH680V 23HP 675cc 75.2mm x 76mm
FH721V 25HP 675cc 75.2mm x 76mm

FH641V 21HP 675cc 75.2mm x 76mm 41.19 cubic inch

there must be differences in the valves and carb sizing / jetting to make engines put out more hp similar to briggs with their engines

When asked for serial, I.E. AS01, BS01, etc., the lower the letter, the newer the engine. It doesn't really matter, except for maybe spark plug reach or other subtle changes

A quick explination of how to tell how big a Kawi is the model number. Those ending in 0 are the rough displacement (cc's) of the engine, those ending in 1 are a up or down hp version of the 0's in the same family.

here is good website for any parts -:
http://www.ereplacementparts.com/kawasaki-fh641vas04-stroke-engine-parts-c-30157_30211_32002.html

cheers pauly46

Posted on May 22, 2011

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