2009 Yamaha Grizzly 450 Auto 4x4 IRS Engine Specifications

ATV Rider Online helps you research the used 2009 Yamaha Grizzly 450 Auto 4x4 IRS engine specifications before buying this Utility quad. Find out what type of engine it is including all the details about the Grizzly 450 Auto 4x4 IRS carburetion type, battery amps, number of cylinders, number of valves per cylinder, engine displacement and compression ratio, cylinder bore and stroke, fuel requirements, and more. Simply choose from the options below to view the 2009 Yamaha Grizzly 450 Automatic 4x4 IRS engine specs.

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Yamaha Grizzly 450 Automatic 4x4 IRS 2009

Research the 2009 Yamaha Grizzly 450 Automatic 4x4 IRS Utility with the information in our used ATV Buyer’s Guide. Our buyer’s guide provides used ATV photos and colors, specification data and more.

2009 Grizzly 450 Auto 4x4 IRS Engine Specs

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Bore (in)	3.33
Bore (mm)	84.5
Carburetion Brand	Mikuni
Carburetor Size (mm)	33
Compression Ratio	10.01
Cooling	Liquid / Air
Cylinders	1
Displacement (cc)	421
Displacement (ci)	25.7
Engine Block Heater	Not Available
Engine Configuration	Single-Cylinder
Engine Immobilizer	Not Available
Engine Type	4-Stroke
Fuel Injector	No
Fuel Requirements	Regular
Fuel System Type	Carburetor
Number Of Carburetors	1
Speed Governor	No
Starter	Electric / Pull
Stroke (in)	2.96
Stroke (mm)	75
Valve Configuration	SOHC
Valves	2
Valves Per Cylinder	2