2017 Offroad

813 / 1410

EXHAUST
TIRES
TUBES
TIRE
ACCESSORIES
BIKE
ACCESSORIES
SNOWBIKE
PITBIKE
GRAPHICS /SEAT
BODY
CONTROLS
BARS /GRIPS
LEVERS
CABLES
INTAKE
FUELSYSTEMS
AIR FILTERS
OIL FILTERS
ELECTRICAL
SPARKPLUGS
BATTERIES
CHARGERS
ENGINE
PISTONS
SUSPENSION
DRIVE
CHAIN
SPROCKETS
BRAKES
CHEMICALS
GASCANS
TOOLS
LOCKS
RAMPS /STRAPS
TRAILERS
PROMOTIONAL
REFERENCE
INDEX
x X X X X
813
Application
Bore x
Stroke mm
Disp.
(cc)
Bore
Size
mm
Sizes
In. WPS# List
Repl. Ring
Set
Repl. Circlips
Wrist Pin
Top End
Bearing
YAMAHA 4 CYCLE (cont’d...)
WR250F, ‘01-04; YZ250F, ‘01-04 77 x 53.6 249 77 STD 4872PS $184.00 7700XU Circlips CW-16
77mm = 12.7:1 Compression 79 0.080 4872P8 220.00 3110XG Wrist pin S-742
79mm = 13.2:1 Compression
YZ250F, ‘01-04 77 x 53.6 249 77 STD 4858PS $220.00 7700YC Circlips CW-16
ArmorGlide skirt coated Wrist pin S-742
13.5:1 Compression
Gas Porting
WR250F, ‘05-13; YZ250F, ‘05-07 77 x 53.6 249 77 STD 4882PS $184.00 7700XU Circlips CW-16
12.5:1 Compression Wrist pin S-742
WR250F, ‘05-13; YZ250F, ‘05-07 77 x 53.6 249 77 STD 4881PS $220.00 7700YC Circlips CW-16
13.5:1 Hi Compression Wrist pin S-742
Race Only (2-ring), Skirt Coated
WR250F ‘01-13; YZ250F ‘01-11 83 x 53.6 290 83 0.240 4982PS $230.00 3268XG Circlips CW-16
290cc Big Bore Replacement; Skirt Coated Wrist pin S-677
YZ250F, ‘08-11 77 x 53.6 249 77 STD 4952PS $190.00 7700XU Circlips CW-16
13.5:1 Compression 263 79 0.080 4952P8 190.00 3110XG Wrist pin S-742
YZ250F, ‘08-11 77 x 53.6 249 77 STD 4976PS 220.00 7700YC Circlips CW-16
14.0:1 Hi Compression Wrist pin S-742
YZ250F, ‘12-13 77 x 53.6 250 77 STD 40072PS $190.00 7700XU Circlips W-6883
13.5:1 Compression Wrist pin S-742
YZ250F, ‘12-13 77 x 53.6 250 77 STD 40094PS $220.00 7700XU Circlips W-6883
14.0:1 Hi Compression Wrist pin S-742
YZ250F ‘14-15; YZ250FX, WR250F ‘15-16 77 x 53.6 250 77 STD 40116PS $184.00 7700YC Circlips CW-16
13.5:1 Stock Compression Wrist pin S-677
YZ250F ‘14-15 77 x 53.6 250 77 STD 40127PS $220.00 7700YC Circlips CW-16
YZ250FX, WR250F ‘15-16 Wrist pin S-677
14:1 High Compression
YZ250F ‘14-15 77 x 53.6 250 77 STD RC903PS $282.00 7700YCA Circlips CW-16
YZ250FX, WR250F ‘15-16 Wrist pin S-677C
RACERS CHOICE; 14:1 High Compression
Boxed Forging; DLC Coated Piston pin
Titanium Nitride Rings; ArmorGlide Skirt Coated
YZ250F ‘16-17 77 x 53.6 250 77 STD 40151PS $184.00 7700YC Circlips W-6883
YZ250FX ‘17 Wrist pin S-677
13.5:1 Stock Compression
ArmorGlide Skirt Coated
YZ250F ‘16-17 77 x 53.6 250 77 STD 40155PS $220.00 7700YC Circlips W-6883
YZ250FX ‘17 Wrist pin S-677
13.5:1 Stock Compression
ArmorGlide Skirt Coated
XT350, ‘85-98; TT350, ‘85-98 86 x 59.6 346 86 STD 4674PS $142.00 3386XC Circlips CW-19
9:1 Compression 354 87 0.040 4674P4 142.00 3425XC Wrist pin S-475
358 87.5 0.060 4674P6 152.00 3445XC
YZ400F ‘98-99; WR400F ‘98-00 92 x 60.1 399 92 STD 4649PS 196.00 3622XR Circlips CW-18
12.5:1 Compression 94 0.080 3701XR Wrist pin S-560
YZ400F ‘98-99; WR400F ‘98-00 92 x 60.1 399 92 STD 4650PS $222.00 3622XR Circlips CW-18
13.5:1 Compression 94 0.080 3701XR Wrist pin S-560
YZ426, ‘00 95 x 60.1 426 95 STD 4693PS $196.00 3741XS Circlips CW-19
12.5:1 Compression Wrist pin S-615
YZ426, ‘01-02 95 x 60.1 426 95 STD 4694PS $222.00 3741XS Circlips CW-19
13.5:1 Compression 97 0.080 4694P8 250.00 3819X Wrist pin S-615
WR450F, ‘07-15; YZ450F, ‘03-09 95 x 63.4 449 95 STD 4785PS 196.00 3741XS Circlips CW-18
12.5:1 Stock Compression 97 0.080 4785P8 222.00 3819XS Wrist pin S-600
WR450F, ‘07-15: YZ450F ‘03-09 95 449 95 STD 4786PS 222.00 3741XS Circlips CW-18
13:1 Compression 97 0.080 4786P8 222.00 3819XS Wrist pin S-600
YZ450F, ‘10-13 97 x 60.8 449 97 STD 40001PS 196.00 3819XS Circlips CW-18
12.5:1 Compression Wrist pin S-759
Nikasil Bore-Sleeving required for oversizes; Skirt Coated
All kits come with pistons, rings and circlips.
Wrist Pin is included, except when noted.
817
PISTONS