How do I clutch tune?

[thomas h.]

I remember a BHQ sand drag video and one dude just killed everybody. Someone commented that his clutch setup was tuned. Soo do people mix fibers and springs to adjust the grab of the clutch? I mix springs stock and what ever together but do peoe order and measure springs to have a certin slip?

[Surfrjag]

You tune a lockup clutch with different springs and lockup weight

[Nieskes]

If you would of looked a little futher down on this same page http://bansheehq.com/forums/index.php?showtopic=150709&page=1#entry1457184

[SlowerThanYou]

You tune a lockup clutch with different springs and lockup weight

 

That's pretty basic tuning, LOL!

[Surfrjag]

Hey its the simple explination... ha

[thomas h.]

I just read that link. Wow got some info.

 

Two or three questions I'm a 95% glamis duner and 5 % hill shooter. Will a lock up last like a stock clutch will ? And will using a lock up be better for dunes? Any down sides?

[SlowerThanYou]

I just read that link. Wow got some info.

 

Two or three questions I'm a 95% glamis duner and 5 % hill shooter. Will a lock up last like a stock clutch will ? And will using a lock up be better for dunes? Any down sides?

 

I'm glad you enjoyed the link. I can only speak from experience on hill shooting, asphalt drags & 300' drags. Depending on the amount of slip you tune in & the mods done to the clutch area. Will affect how well the clutch will last. We spend most of our time tuning the clutch & it usually pays off.

 

We have some set-ups for people that play ride, desert ride & dune. Using standard lock-ups & slingshots, they love their set-ups. These set-ups don't have anywhere near the slip the race set-ups have. I'm sure you give up a little in clutch life, but what you gain is determined by the rider's satisfaction.

 

Here's an example: Desert/dune rider. Rider only has 2 fingers on his clutch hand. The clutch is set-up with light base pressure & the lock-up does the rest of the work. This is ideal for anyone not wanting to wear their hand out clutching. Plus, it helps keep the motor in the power band; reducing clutching.

 

There are pros & cons to about everything in life. You have to choose what works best for you.

[thomas h.]

Thanks for the hours spent on Bhq. I'm going to try it out. It sounds to me that my clutch will be much more predictable and ill focus more on the ride ahead. I thinks that's why so many people like four smokes because of easy to use power curves at low speed making the quads reaction the same. (But boring )

[Oregon dunner]

What's the trick for the desert/dune lockout tune? Light springs and more weight on the lockout?

[trickedcarbine]

Something like that...

[SlowerThanYou]

What's the trick for the desert/dune lockout tune? Light springs and more weight on the lockout?

 

To put it in it's simplest terms, you hit the nail on the head.

 

Something like that...

 

I think tricked knows there's more to it than that.

[trickedcarbine]

Yessir. I do. I have found that clutch tuning isn't just for drag stuff and that with a little thought you can set up any clutch for any riding style. I found a way to make my clutch slip out of the turns just right so that it keeps the front end under control and let's the motor rev right up in to the meat where my motor makes its best power.

 

The best way to answer the OP's question. You wanna find the balance between just enough slip and to much slip to keep the motor reving where it makes power yet control the way the bike puts the power down and does so with out any bogging or hesitation. To much lock up and it falls on its face, to little and it's revved to the moon and slipping. In turn costing you clutch life. Learning to tune your clutch is going to be time consuming if you are really serious about getting it right. It might even cost you some dollars on new clutches and steels. Check out the lock up tuning thread and take notes. There is a lot of good stuff there that years ago guys said was crazy or nonsense. Now they are all doing it on their bikes.

[Oregon dunner]

What kind of springs would someone want? Would you use stock springs or cut a little off your springs? What kind of weight would be installed or how and where would you install them. Would you just use a longer bolt and extra nuts on the lockout arms or is there more to it? Lots of good information on previous post and better understanding of the lockout and how it can be tuned

[SlowerThanYou]

That's one of the most sought out questions for clutch tuning.

 

Refer to the Lock-up/Lock-out Tuning thread.

[Oregon dunner]

Gotcha