Stage 3 Simple Heavy Duty Clutch Solution

[bideronit13]

I have a stage 3 tranny and gxh50 motor on a SBP platform.
I've been looking real hard for some clutch ideas on how and were to get heavy duty springs and how some other ideas include lightening the shoe with a drill by drilling weight out of the shoe.
So after finding that my issue is a little more severe then others due to the 80cc carb and low end torque causing a jerking clutch chatter.
So I am just going to get some washers that will fit under the springs while still allowing the screw to go through. This will cause more tension on the spring creating a solution.
Hope it also works for you.

 

[5-7HEAVEN]

Pictures?

 

[Barnfresh]

Yes, pictures please. I'm having a hard time visualizing how you are increasing spring tension. Are you running the old style clutch?

 

[bideronit13]

Its the only clutch I ever had so I cant compare with anything. It came with the stage 3 from bicycle-engines.
So the spring goes down the hole in the shoe. But before I put the spring in I'll put about 3 or 4 washers to tighten tension.

Heres the add at bicycle-engines

http://www.bicycle-engines.com/complete-gear-assembley-p-104.html

Then here's a clutch they sell that has the same bolt going through the shoe.

http://www.bicycle-engines.com/popup_image.php?pID=283&type=jpg

I uploaded a few more pics.

So the stronger the tension on the spring the harder it is for the clutch to engage. So instead of ingageing at normal rpm what ever it is I dont know off hand the clutch will engage at 3000rpm like a $70 clutch below from stanton

http://www.staton-inc.com/store/pro..._Rotor_Super_Duty_3_shoe_3_000_rpm-800-0.html

You really want the clutch to engage at an rpm like 3000 so you can come to a stop without the motor jerking and clutch chatter at low rpm then the engine stalls out or you stretch chains and other bad stuff.

 

[Barnfresh]

I see exactly what you are doing now. I didn't realize the kit came with it's own clutch. Are you running your set up wet or dry?

 

[2CycleLogicalIssueS]

Wont work imo.
You still using the same spring, with the same amount of tension............. puting a couple washers behind will only make the springs want to engage earlier,not later

 

[Barnfresh]

Sorry 2 cycle but I think bider is on the money with this one. Just stop and think about it for a minute. Increasing spring tension with washers should raise the stall speed or RPM where the clutch comes in then locks up. Too many washers though and you could have spring bind.

 

[bideronit13]

Correct Barnfresh
Another way of looking at is more tension from heavy duty spring is nothing more then more tension from a light spring and your right about to many washers so you might not get it on the first try.
I first greased the stage 3 with just heavy grease from wal-mart. It actually broke down into oil and Im looking at using a different grease.
It never ends I tell ya.

 

[2CycleLogicalIssueS]

Im not so sure.....

Ive stopped, Ive thought about this already.
Thats how I came to my conclusion Mr Barnfresh.
Yes, stronger springs will change the clutch engagement RPMs..................BUT....................
Just puting a few washers behind the original springs will not create stronger spring tension, it will only make the springs want to push the shoes outward easier/earlier.
If it was as easy as placing a few washers in there lots and heaps of members would be doing this instead of spending there hard earned on tougher springs.
I guess we will just have to wait for old mate to try it to see what will really happen??
Also lightening the clutch shoes by drilling weight from them will also make them slightly easier to pivot, thus making engagement earlier..................
Placing a few washers behind the springs is not creating more tension at all.

 

[bideronit13]

This is kin of off topic but look at the price stanton has for the gxh50 with a crankshaft kit.
http://www.staton-inc.com/store/pro...plete_with_Honda_GXH50_Four_Cycle-1038-0.html

I dont think its a credable company because they only offer the throttle hook up for the stock gxh50 with govoner. This is the same place thats trying to sell the heavy duty clutch for 3000rpm. Kinda speaks for it self.