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DaltonPro Helixes for Yamaha
Suggested list price $125

Extensive machining to be lightweight like the
OEM castings, but with the attractive strength
of solid billet aluminum.

Helixes for Yamaha use the prifix "Y" before the angle for the part number e.g. Y50/40

Available Angles: Y48 / 40
Y48 / 41
Y48 / 42
Y48 / 43
Y48 / 44
Y49
Y49 / 34
Y49 / 36
Y49 / 39
Y49 / 41
Y49 / 43
Y49 / 45
Y49 / 47
Y49 / 51
Y50
Y50 / 36
Y50 / 38
Y50 / 40
Y50 / 41
Y50 / 42
Y50 / 43
Y50 / 44
Y50 / 45
Y50 / 46
Y50 / 48
Y51
Y51 / 33
Y51 / 35
Y51 / 36
Y51 / 37
Y51 / 38
Y51 / 39
Y51 / 40
Y51 / 43
Y51 / 45
Y51 / 47
Y52
Y52 / 38
Y52 / 40
Y52 / 42
Y52 / 44
Y52 / 46
Y52 / 48
Y53
Y53 / 33
Y53 / 35
Y53 / 36
Y53 / 38
Y53 / 40
Y53 / 41

Y53 / 42
Y53 / 43
Y53 / 45
Y53 / 47
Y53 / 49
Y53 / 51
Y54
Y54 / 40
Y54 / 41
Y54 / 42
Y54 / 44
Y54 / 46
Y54 / 48
Y54 / 50
Y55
Y55 / 33
Y55 / 45
Y55 / 48
Y56 / 36
Y56 / 38
Y56 / 40
Y56 / 42
Y56 / 44
Y56 / 46
Y56 / 48
Y56 / 50
Y57 / 39
Y57 / 43

Y57 / 50
Y58 / 36
Y58 / 42
Y58 / 44
Y58 / 48
Y59 / 48
Y60
Y60 / 40
Y60 / 48
Y60 / 50
Y61 / 46
Y62
Reverse:
Y38 / 41
Y39 / 44
Y40 / 46
Y40 / 50
Y41 / 47
Y43 / 47
Y44 / 48
Y45 / 50
Y47 / 51
Y49 / 51
Y49 / 53

Y38 / 32
Y39
Y39 / 35
Y40
Y40 / 34
Y40 / 36
Y40 / 38
Y41
Y42
Y42 / 34
Y42 / 36
Y43
Y43 / 35
Y43 / 37
Y43 / 39
Y44
Y44 / 34
Y44 / 36
Y44 / 38
Y45
Y45 / 37

Y45 / 39
Y45 / 41
Y46
Y46 / 34
Y46 / 36
Y46 / 38
Y46 / 40
Y46 / 42
Y46 / 43
Y47
Y47 / 39
Y47 / 40
Y47 / 41
Y47 / 42
Y47 / 43
Y48
Y48 / 34
Y48 / 36
Y48 / 37
Y48 / 38
Y48 / 39

Yamaha “R” Series Helixes

Available “R” style:
49R44
50R42
50R44
50R46
50R47
51R34
51R46
52R40
52R42

52R44
52R45
52R46
53R41
53R43
53R45
53R47
53R48
54R40
54R42
54R43
54R44
54R45
54R46
54R48
55R45
56R43
56R44
56R46

The “R” (radius) series helixes for Yamaha from Dalton features a short duration initial angle, radiuses into what is mostly a straight angle helix (second angle). This style of cut is a favorite of some clutch tuning professionals and is quite effective at controlling initial over-rev while still maintaining the characteristics of a straight helix.

 

 

Billet Quick Adjust Cam Arms
Suggested list price $259

We now offer our Patented Quick adjust weights for Yamaha applications. This method of adjustment allows for adding or subtracting mass from the main body of the flyweight without even removing the flyweight from the clutch. Makes for Quick and easy testing and tuning. This series of Quick Adjust uses our "DPYR" series curvature that has been very popular on the four stroke models.

With Yamaha models it is important to know that the necessary "grams" needed for an application can vary widely because of the variety of flyweights and curvatures on the market. Even within Yamaha factory flyweights there is great variance in grams and curvature for the same HP. With the curvature and location of mass used on our Dalton "Quick Adjust" it will most likely be different grams required that stock. Example : The QAY 54 set is often used on 3 cylinder Nitro/Viper type four stroke applications, the QAY -62 is often used at 64-68 grams on normally aspirated Apex applications, (based on your own chosen springs and helixes, etc).

Available base weights:  
QAY-54 54-61.4g
QAY-58

58-65.4g

QAY-62 62-69.4g

QAY-66

66-73.4g

QAY-70

70-77.4g

Boosted applications:

 

DTYA-1 73.6-81g (common for low boost , high altitude longtracks)

DTYA-2

79-86.4g ( most common for most boosted applications)

DTYA-3   

84.6-92g (a new heavier base weight for higher boost applications)

Quick Adjust Screw Hardware
QACA-SH
Suggested list price $6.25
(one pkg of 6 assorted for one flyweight)

This pkg of hardware is a replacement pack. They are sold as a pack for each quick adjust individual flyweight. Fits all Dalton Snowmobile quick adjust flyweights. 1/4" UNC with pre applied nylon patch.

New Super Slugs!
QACA-SS
Suggested list price $99 (Set of 6)

These tungsten filled set screws are an add on item for any set of Dalton "Quick Adjust" snowmobile flyweights. Each 7/8" long unit weighs 5.4 grams . Custom made with pure tungsten inserts, this set up is only used if you need to make your existing quick adjust set heavier.

Makes Dalton QA sets for Yamaha  3.4g heavier, and Polaris / Arctic sets with the longer threaded passage up to 4g heavier when compared to the standard set screws fully loaded.



DaltonPro Flyweights for Yamaha
Suggested list price $169

DPY

These are a more aggressive curvature flyweight than 4 stroke models from the factory. These ones have a curvature more similar to the 8DN-20 type curvature, and can be used for tuning either 2 or 4 stroke models. This more aggressive curvature is often used at much less grams than the factory (flatter) curvature- a favorite for quick revving drag applications. Available in 53, 55.5, 57.5, 60, 62,64, 66, 68 gram.

 

DPYR Series
Suggested list price $169

The DaltonPro DPYR series uses a curvature that is slightly less aggressive than our DPY flyweights. This new curvature allows more “untucked” mass at the point of belt contact and allows for the use of more total flyweight mass than many aggressive flyweights. These four stroke oriented flyweights can offer quicker acceleration while still maintaining excellent low speed belt grip. Uses factory Yamaha mass rivets for adjustable tuning. Typical applications use 58 to 62 g base weights on RX/Apex applications, while many turbocharged tuners use the 70 and 74g base weights in configurations to 83g total mass.

Available base weights: 58, 62, 66, 70, 74g.

Note: These weights still use a more aggressive curvature than factory RX weights. As many tuners know, the total mass required of a flyweight is dependant on the curvature and the location of mass, and comparing grams to other weights is irrelevant sometimes.

Yamaha Flyweight Rivets (pkg of 3)

These rivets are used to adjust the mass of OEM Yamaha flyweights on the DaltonPro DPYR.

DFR-Y Steel, solid. 3.1 g
Suggested list price $10.35

DFRH-Y Steel, hollow. 2.4g
Suggested list price $10.35

DFRA-Y Aluminum, hollow. .85g
Suggested list price $10.35

DFRL-Y Long, Solid - 3.6g
Suggested list price $10.35

Yamaha Primary Springs
Suggested list price $29.95

DaltonPro springs are manufactured form high quality chrome silican wore to exacting tolerances, stress relieved, and shot peened for long lasting durability.

  Part # Pre-load
@ 2.888”
Total force
@ 1.593”

Dalton black/silver DPPS-B/S 41 kg 125 kg
Dalton black/red DPPS-B/R 48 kg 120 kg
Dalton black/blue DPPS-B/BL 53 kg 133 kg
Dalton black/green DPPS-B/G 57 kg 129 kg
Dalton red DPPS-R 39 kg 133 kg
Dalton Orange DPPS-O 28kg 132kg
     

Yamaha Secondary Spring
Suggested list price $29.95
   


Dalton red

DPSS-YMR  
This new DaltonPro secondary spring has the same torsional force as the silver secondary spring from Yamaha, but has 1/2” longer free length for slightly more side force.

Primary Clutch Puller
Suggested list price $50.50

  Dalton Part # Yamaha Part #

Yamaha (All YPZ/YXR) DCP-F Y501882

Dalton offers an industry leading selection of clutch tuning components. If you are looking for specific set up information for your application, there is info here that may be of help.
 

North American Made

At Dalton Industries, we strive to source as many materials as possible from United Stated and Canadian sources. Machining is done in house and we make an extra effort to ensure as many fasteners,etc. as possible have origin in North America.

 
 
Site and contents Copyright © 2014 Dalton Industries Ltd.