Screamin' Eagle Performance Valve Spring Kit
J043122009-05-20
GENERAL
Kit Number
18209-06
Models
For model fitment information, see the P&A Retail Catalog or the Parts and Accessories section of www.harley-davidson.com (English only).
Additional Parts Required
Shim Kit 18226-03 is recommended for attaining desired seat pressure.
NOTE
This kit is intended for use with high lift, high RPM applications. This kit will work with lifts up to 0.585 inches and up to 6000 rpm. Refer to Screamin' Eagle Pro Catalog for kits outside these specifications.
WARNINGRider and passenger safety depend upon the correct installation of this kit. Use the appropriate service manual procedures. If the procedure is not within your capabilities or you do not have the correct tools, have a Harley-Davidson dealer perform the installation. Improper installation of this kit could result in death or serious injury. (00333b)
NOTE
This instruction sheet references service manual information. A service manual for your model motorcycle is required for this installation and is available from a Harley-Davidson dealer.
Kit Contents
Table 1. Kit Contents
Description (Quantity) | Part Number |
|---|---|
Collar, valve spring upper (4) | Not Sold Separately |
Collar, valve spring lower (4) | Not Sold Separately |
Key, valve spring collar (8) | 18240-98 |
Valve spring (4) | Not Sold Separately |
INSTALLATION
| 1. | Refer to the service manual and follow the instructions for stripping the motorcycle for top end repair. | |||||||||
| 2. | Remove rocker covers and cylinder heads. | |||||||||
| 3. | Using a valve spring compressor, compress the valve springs and remove upper collar keys, upper collar, and lower collar on all four valves. | |||||||||
| 4. | See Figure 1. Install lower valve spring collars, upper collars, and collar keys. Check installed valve spring height. Use Shim Kit to add shims or remove material from spring seat to reach desired installed valve spring height. Remove upper collar keys and upper collars. NOTE Shim to desired seat pressure by placing shims under lower collar, but do not use more than 0.075 in. (1.91 mm) of shims. Every 0.015 in. (0.38 mm) installed spring height increases seat pressure by 5.24 lbs (2.38 kg). | 
Figure 1. Check Installed Valve Spring Height | ||||||||
| 5. | See Figure 1. Using parts from kit, assemble cylinder heads following the service manual instructions. | |||||||||
| 6. | Follow instructions in service manual to install the cylinder heads and rocker covers. | |||||||||
| 7. | To return the motorcycle to service, follow the service manual instructions for assembling top end repair. |