BOLD MAGENTA part numbers are new for 2025 ENGINE & COOLING PARTS-UNLIMITED.COM ATV/UTV | 2025 ENGINE & COOLING 1109 DISCLAIMER: *EMIS (EMISSIONS CATEGORIZATION CODE). SEE PAGES 4-6 FOR CATEGORY CODES, IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. PRODUCTS NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES IF NOT CATEGORIZED AS “1” OR “4”. HOT CAMS (CONT) FITS MODEL DESCRIPTION INTAKE LIFT INTAKE DURATION (@ 1 MM) EXHAUST LIFT EXHAUST DURATION (@ 1 MM) PART # YAMAHA (CONT) YF350R Raptor 07-13 (stage 1) Single-cam motor. Excellent mid-range and top-end increase. Uses stock valve springs and rockers. 10 mm 250 10 mm 250 0925-0326 YFM350X Warrior 87-04 (stage 1) Single-cam motor. Excellent mid-range and top-end increase. Uses stock valve springs and rockers. 10 mm 250 10 mm 250 YFM350S1-A (stage 2) Single-cam motor. Excellent mid-range and top-end increase. Designed specifically for the Hot Rods stroker crank and piston kit PART # 0921-0011 and 0910-2637. Uses stock valve springs and rockers. 10 mm 262 10 mm 254 0925-0090 YFM400 Big Bear 2x4 00-06/Kodiak 93-99 (stage 1) Single-cam motor. Excellent mid-range and top-end increase. Uses stock valve springs and rockers. 10 mm 250 10 mm 250 YFM350S1-A YFZ450 04-09 (stage 1 int.) Dual-cam motor. Intake and exhaust cams sold separately. Excellent mid-range and top-end increase. Uses stock valve springs. 8.86 mm 269 - - 0925-0034 (stage 1 exh.) Dual-cam motor. Intake and exhaust cams sold separately. Excellent mid-range and top-end increase. Cam includes auto-decompression mechanism. Uses stock valve springs. - - 8.67 mm 265 0925-0062 (stage 3 int.) Dual-cam motor. Intake and exhaust cams sold separately. Uses stock valve springs. 8.89 mm 260 - - 0925-0263 (stage 3 exh.) Dual-cam motor. Uses stock valve springs. Includes auto-decompression mechanism. - - 8.74 mm 253.5 0925-0264 YFZ450R 09-20, YFZ450X 10-11 (stage 3 ITR int.) Dual-cam motor. Intake and exhaust cams sold separately. Used as a set these cams provide the most high-rpm power.These cams are best suited for higher speed riding applications and oversize engines. Uses stock valve springs. 8.64 mm 250 - - 0925-1124 (stage 3 ITR exh.) Dual-cam motor. Intake and exhaust cams sold separately. Used as a set these cams provide the most high-rpm power.These cams are best suited for higher speed riding applications and oversize engines. Uses stock valve springs. - - 9.65 mm 262 0925-1125 YFZ450R 09-20, YZF450X 10-11 (stage 1 int.) Dual-cam engine. Intake and exhaust cams sold separately. Improved throttle response with low- to mid-rpm power increase and minimal top-end loss. Uses stock valve springs. 8.13 mm 230 - - 0925-1007 (stage 1 exh.) Dual-cam engine. Intake and exhaust cams sold separately. Improved throttle response with low- to mid-rpm power increase and minimal top-end loss. Includes auto-decompression mechanism. Uses stock valve springs. - - 8.64 mm 258 0925-1008 (stage 2 int.) Dual-cam engine. Intake and exhaust cams sold separately. Improved throttle response with mid- to top-end-rpm power increase and minimal bottom-end loss. Uses stock valve springs. 8.64 mm 239 - - 0925-1009 (stage 2 exh.) Dual-cam engine. Intake and exhaust cams sold separately. Improved throttle response with mid- to top-end-rpm power increase and minimal bottom-end loss. Includes auto-decompression mechanism. Uses stock valve springs. - - 9.14 mm 262 0925-1010 YXR660 Grizzly 02-08 (stage 1) Single-cam motor: True drop-in cam. No valve spring change needed. Improved acceleration, more bottom-end and no top-end loss. Uses stock valve springs and rockers. Uses stock auto-decompression mechanism. 8.64 mm 246 9.04 mm 248 0925-0265 (Mudbuster) Single-cam engine. Improved acceleration, more bottom-end and no top-end loss. Must use Raptor 660 center intake valve spring, not included.All other valve springs stock. Uses stock auto-decompression mechanism. 9.02 mm 247 9.12 mm 248 0925-0504 YFM660 Raptor 01-05 (stage 1) Single-cam motor. Excellent mid-range and top-end power increase. Uses stock auto-decompression mechanism. Uses stock valve springs. 8.5 mm 254 9.4 mm 246 YFM660S1-A (stage 2) Single-cam motor. More top-end than stage 1. Uses stock auto-decompression mechanism. 9.75 mm 246 10.28 mm 259 YFM660S2-A2, 3 (stage 3) Single-cam motor. Substantial mid-range and top-end gains with minor loss of low-end power. Specifically designed for big bore/stroker kit, Not compatible with stock displacement. Requires Hot Cams valve spring kit Part #SKYFM660S2. Uses stock auto-decompression mechanism 10.16 mm 265 10.82 mm 271 0925-1589 YXR660 Rhino 04-07 (stage 1) Single-cam motor: True drop-in cam. No valve spring change needed. Improved acceleration, more bottom-end and no top-end loss. Uses stock valve springs and rockers. Uses stock auto-decompression mechanism. 8.64 mm 246 9.04 mm 248 0925-0265 (Mudbuster) Single-cam motor. Improved acceleration, more bottom-end and no top-end loss. Must use Raptor 660 center intake valve spring, not included.All other valve springs stock. Uses stock auto-decompression mechanism. 9.02 mm 247 9.12 mm 248 0925-0504 YFM700FG Grizzly Fi 4x4 07-13 (Mudbuster) (stage 1) Single-cam motor. Excellent mid-range power increase. Uses stock valve springs and rockers. 10.3 mm 260 8.6 mm 243 0925-0329 (stage 2) Single-cam motor. Good mid range and great top-end power gains. Uses stock valve springs and rockers. Uses stock decompression mechanism. 10.3 mm 268 8.6 mm 255 0925-1590 YFM700R Raptor 06-08 (stage 1) Single-cam motor. Good mid-range and top-end. Uses stock auto-decompression mechanism. Uses stock valve springs and rockers. 9.6 mm 253.5 8.6 mm 243 0925-0126 (stage 2) Single-cam motor. Excellent top-end and great over-rev. Uses stock auto-decompression mechanism. Uses stock valve springs and rockers. 10.3 mm 260 8.6 mm 243 0925-0127 (stage 3) Single-cam motor. Drastically improves top-end with over-rev. Uses stock auto-decompression mechanism. Uses stock valve springs. 10.3 mm 268 8.6 mm 255 0925-0262 YFM700 Raptor 09-21 (stage 1) Single-cam motor. Good midrange and top end gains. Uses stock valve springs and rockers. Uses stock decompression mechanism 9.6 mm 253.5 8.6 mm 243 0925-1591 (stage 2) Single-cam motor. Excellent top-end and great over-rev. Uses stock auto-decompression mechanism. Uses stock valve springs and rockers. 10.3 mm 260 8.6 mm 243 0925-0507 (stage 3) Single-cam motor. Drastically improves top-end with over-rev. Uses stock auto-decompression mechanism. Uses stock valve springs. 10.3 mm 268 8.6 mm 255 0925-0508 2 Includes valve springs, base washers and retainers. 3 Requires Hot Cams spring kit PART #0926-0869.
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