Hays Convertable Clutch Installation Instructions
Convertable Clutch Installation Instructions
The Convertible Clutch is designed to install similar to your OEM clutch.
1. Install the outer basket.
2. Install the bearing/shim kit with the bearing facing the inner hub
3. Install the inner hub
4. Install clutch pack and set air gap at 0.040-0.050 thousanths (for use in slider mode) (.100 for use in Lockup Mode)
5. Install the clutch pusher rod.
6. Install the outer hat assy. Using the 4mm socket head cap screws provided.
Replace the hardened steel spacer that goes between the face of the clutch basket and the inner hub with the thrust washer shim kit assy. Make sure the needle bearing faces the inner hub. If you don't have .003 to .008” clearance the inner hub will not rotate if there is not enough clearance,likewise the basket will have excessive endplay on the higher end of the spectrum
Install the factory pusher assy. in the end of the input shaft.
Install friction and metal plates same as with stock procedure, except eliminate the stock ring and spring washer, start with a fiber then steel then fiber then steel continue till you end with fiber. make sure the air gap is .040-0.050 (for use in slider mode) (.100 for use in Lockup Mode)
air gap is measured from the edge of the basket to the last fiber plate,subtracting any step in the clutch hat/pressure plate assy., If not,you can mix steels and fibers to obtain the correct air gap.
Place the hat assembly on the basket and tighten the allen head cap screws to secure it.
Adjusting the Convertable Clutch in slider/hand clutch combination mode
using the 6 short Medium Stall compression springs supplied with your unit set the height at .890 thousanths from the top of the adjuster nuts to the top of the hat assy. you can then check to see what rpm the clutch engages and adjust the stall speed from there,to increase stall speed you turn the 16mm adjuster nut in a clockwise direction,to decrease stall speed turn in a counter-clockwise direction,if you would like a lower desired stall speed use the 6 Low Stall Compression springs included in your kit.
it is not neccesary to attach the 3 extension springs to the lockup arms when running in the combination mode.
Slider/Hand Clutch Combination
To use the Convertible Clutch in the COMBINATION mode you will install the 6 short springs supplied with your kit on the outside of the hat assy. Using the spring adjuster nuts you adjust the height of the adjuster nut to set the rpm at which the clutch engages,for standard street use we recommend 1800-2100 rpm engagement,for dragstrip use you may want to experiment with different rpm engagements for best results.
In this configuration your clutch will engage based on engine rpm (slider),your clutch lever will override the engagement of the clutch at any rpm and you can also hold in the clutch and launch the bike at any rpm you wish,no matter what the rpm engagement is set at.
Stall speed is simply adjusted by placing a 16mm socket on the nut and adjusting it clockwise(increase rpm) or counterclockwise(decrease rpm).
You can also adjust the amount of weight on the lockup arms to fne tune stall speed and control at what rpm and how hard the clutch engages.
Single Stage Engine Driven Lockup
To use the Convertible Clutch in the Single Stage Engine Driven Lockup mode you will need to remove the 4mm screws holding the hat assy. To the basket and install the 6 long springs supplied with your kit in between the pressure plate and outer hat assy,and install back onto the basket.
It is not necessary to remove the 8mm studs from the pressure plate but you will need to remove the spring adjuster nuts and the springs from the outside of the hat assy place them elsewhere while using this mode.
Using this combination the clutch will engage/disengage using the clutch lever only,and tuning will be performed by varying the static pressure of the base spring and the weight on the lockup arms.
Multi stage Engine Driven Lockup
To use the Convertible Clutch in the Multi Stage Engine Driven Lockup mode you can simply attach the 3 extension springs provided in the kit to the clutch arms in the 2 small holes located in the middle of the arms,to allow an additional level of tuning ability. there are 3 sets of extension tuning springs included in your kit for adjustability NOTE: DO NOT ATTACH THE EXTENSION SPRINGS TO THE LARGE HOLE AT THE TOP OF THE LOCKUP ARM THEY WILL BREAK.