BOLD MAGENTA part numbers are new for 2025 ENGINE PARTS-UNLIMITED.COM STREET | 2025 ENGINE 1383 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”. FITS MODEL DESCRIPTION KIT CONTENTS PART # HONDA CRF250L 13-20, CBR300R 15-19, CB300F 16-18 Intake: 0.420” max valve lift, 1.315” installed height, 60 lbs. seat pressure, 187 lbs. open pressure; Exhaust: 0.400” max valve lift, 1.160” installed height, 52 lbs. seat pressure, 149 lbs. open pressure 4 CrSi valve springs (2 intake/2 exhaust), 4 titanium spring retainers, 4 H.T. steel base washer 0926-3285 KAWASAKI 650R Ninja 06-16 Intake: 0.4” max valve lift,1.215” installed height, 39 lbs. seat pressure, 136 lbs. open pressure; Exhaust: 0.4” max valve lift, 1.215” installed height, 39 lbs.seat pressure, 136 lbs. open pressure 12 CrSi valve springs (6 intake/6 exhaust), 12 titanium valve spring retainers (6 intake/6 exhaust), 12 H.T. steel shims (for intake valves), 12 steel base washers (6 intake/6 exhaust) 0926-3395 YAMAHA YZF R1 98-03 Intake: 0.380” max valve lift, 1.200” installed height, 28 lbs. seat pressure, 74 lbs. open pressure; Exhaust: 0.380” max valve lift, 1.120” installed height, 38 lbs. seat pressure, 84 lbs. open pressure 20 CrSi valve springs (12 intake/8 exhaust), 20 titanium valve spring retainers (12 intake/8 exhaust), 20 steel base washers (12 intake/8 exhaust), 8 Viton® exhaust valve guide seals 0926-3261 YZF R1 04-06 Intake/exhaust: 0.340” max valve lift, 1.325” installed height, 48 lbs. seat pressure, 118 lbs. open pressure 20 CrSi valve springs (12 intake/8 exhaust), 20 titanium valve spring retainers (12 intake/8 exhaust), 20 steel base washers (12 intake/8 exhaust) 0926-3268 LIGHTWEIGHT RACING VALVE SPRING KITS •Designed to out-perform and outlast the factory valve springs • Kit features lightweight, high-strength CrSi valve springs, H.T. steel base washers and titanium spring retainers (unless noted in chart) • Complete kit, everything you need to for a complete valve spring swap NOTE: When converting to stainless steel intake valves on Kawasaki ZX10R 11-13, it is recommended NOT to exceed the OEM cam lift. 0926-3261 0926-3285 FITS MODEL PART # HONDA CRF1000A/D 17-21 0926-3407 FITS MODEL PART # KAWASAKI 650R Ninja 06-16 0926-3395 FITS MODEL PART # SUZUKI GSX-R1000 05-08 0926-3251 HIGH-PERFORMANCE OVATE WIRE BEEHIVE VALVE SPRING KITS • Progressively wound springs using Kobe super-clean, chrome silicon-based wire that is heat-treated and shot-peened • Tight-tolerance, FEA-designed hardened steel Posi-Loc™ style upper retainers or titanium retainers to ensure correct assembly height and resist keeper “pull through” • Hardened H.T. steel base washers control lateral movement •Kits use OEM-style valve keys (sold separately) •Made in the U.S.A. 0926-3407 0926-3395
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