Spring Only Kit, High Perf., 0.350" Lift, Various Yamaha® Applications
Spring Only Kit, High Perf., 0.350" Lift, Various Yamaha® Applications
SKU:80-80394
Couldn't load pickup availability
Yamaha® YZF™ R1 1998-2003
Yamaha® Apex™ 2006-2010
Yamaha® RX-1™ 2003-2005
All KPMI® valve springs are designed in house using sophisticated, proprietary design and simulation software programs. Our engineers, software, and 75 years of experience enable us to determine critical characteristics including stress, natural frequency, system harmonics, and fatigue life. Our spring manufacturing partners are U.S based companies that are ISO certified. The Super-Clean Chrome-Silicon valve spring wire we use is traceable back to Kobe Japan where some of the best spring wire in the world is manufactured. Each spring goes through a rigidly controlled heat treatment, stress relief, and shot peening process.
Combining our design, simulation, and manufacturing protocols with this premium quality valve spring wire allows KPMI® to supply you with the best possible valve springs period!
| Installation Instructions |
Click Here |
| Type | Intake/ Exhaust |
| Intake Valve Lift | 0.350" |
| Intake Installed Height | 1.370" |
| Intake Seat Pressure | 30# |
| Intake Open Pressure | 90# |
| Intake @ Lift | 0.350" |
| Exhaust Valve Lift | 0.315" |
| Exhaust Installed Height | 1.415" |
| Exhaust Seat Pressure | 44# |
| Exhaust Open Pressure | 95# |
| Exhaust @ Lift | 0.315" |
| Unique Identifier No. | FR327789_01GAUSt |
