How to tune the Clake Pro Lever and the Clake 2 by choosing cams and changing the cams that affect the clutch, brake and how they interact. You can also download written instructions here: www.clake.com.au/support/ The Clake 2 is a combined easy clutch and left hand rear brake: the inner lever is for the clutch only, the outer lever disengages the clutch then applies the rear brake, plus an adjustable anti-stall feature. The Clake Pro Lever is also a combined easy clutch and left hand rear brake but features a single lever disengages the clutch then engages the rear brake, and also tilts for on-the-fly selection of more clutch and less brake. The cam on the right is a brake cam marked 4C1, all brake cams are marked in this fashion i.e. a number followed by a letter followed by a number. They can also be distinguished from the other cams by having a 13mm hole as opposed to a 12mm hole as used for both the Clutch (centre) and Clutch assist (left) cams. Clutch cams (centre) are marked with a number followed by a letter, in the example shown 4a.
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Clutch assist cams are marked with a one or two letters followed by a space a number then a space and then another number. All of the cam are attached by means of a single 4mm dia countersunk screw that requires a 2.5 mm Allen Key. Please note that Locitite (low strength thread lock) MUST be applied to each screw when installing to ensure that these screws do not work loose. When installing cams it is imperative that you ensure that the can is properly seated before tightening the retaining screw.
REMOVING THE LEVER
1/FOLD THE LEVER OUTWARDS (YOU SHOULD FEEL 2 DISTINCT CLICKS) THIS WILL ALSO PUSH OFF THE PLASTIC TOP COVER THAT HOLDS THE CENTRAL PIVOT PIN.
2/ PUSH THE CENTRAL PIVOT PIN OUT FROM UNDERNEATH
3/ REMOVE LEVER, Pull black brake arm and brown shim out of lever taking careful note of their position and the orientation of the shim (.5mm
step fits into brake arm)
The top cam mounted on the black brake arm is the Brake cam. The next down is the Clutch cam, and the bottom is the Clutch Assist cam.
CAM IDENTIFICATION MARKINGS BRAKE CAMS:
The first number refers to the point at which the brake actuation occurs within the levers travel. This represents the point at which the brake piston is started to be moved during the CLAKE’s operating levers travel towards the handlebars. This is graduated from 1 to 4 with 4 being the earliest start and 1 being the latest. Each no. represents a 2 degree shift in brake actuation commencement. There is also an optional brake arm that advances the brake actuation by 3 degrees that is distinguished by #3 engraved on it. The centre letter denotes the initial take up. The 3 degree advance arm is not usually supplied or necessary except for possible use with auto clutch applications, super motard racing or to obtain very fine adjustment.
There are 4 starts available A,B,C,D. A representing the slowest start and D being the quickest or most aggressive. The last number represents the overall lift of the cam from 1 to 8, with 1 representing the lowest lift and 8 the highest. For example the brake cam shown in the top picture is a 4C1
4 = Early start for brake actuation.
C= 3rd Most aggressive start.
1=Lowest overall lift.
CLUTCH ASSIST CAMS:
The CLAKE employs a system known as CLUTCH assist to reduce the force required to operate the CLAKE. It does this by releasing stored energy from a
spring in order to balance out a large proportion of the force required to actuate the clutch.
*Note for use with auto clutches such as Recluse the Clutch assist system must be disabled.
CLUTCH assist cams have a number followed by another number followed by a letter. The first letter refers to the relative point at which the assistance starts with 0 being the earliest and 4 the latest. The second number refers to the amount of assistance ranging from 1 offering the least assistance to 6 giving the most assistance. The letter should be matched to the clutch cam letter ie if you are using a “B” or “b” clutch cam then you should use a clutch assist cam that ends with a “B”.
CLUTCH ASSIST PRELOAD:
The CLAKE clutch assist spring preload can be altered by means of the removal or addition of shims located between the clutch assist spring and the clutch assist activating pin. Most CLAKE’s are supplied with two preload shims. These shims are .7mm thick.
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