Planet Minis

fatcaaat · 07-19-2008, 06:26 PM

Alright...here's one I thought I would do, but want to see what you think.

Is it possible to put an automatic clutch basket on and then swap shift shafts and run a manual clutch cover?

So, essentially, you have a slipper clutch setup...the auto runs like normal, but to shift gear to gear, you have to pull in the clutch lever?

What do you think...will it work?

70sdiscotrike · 07-19-2008, 06:40 PM

Wait - that makes no sense at all. If you need the clutch to shift - it's a manual.

If you're thinking of using what the autocrossers use - where you use the clutch for a holeshot, but then shift like an auto. Maybe you got confused??

DAVE

dirtbkr188 · 07-19-2008, 06:45 PM

Essentially, that would be the same as "toeing" the shift lever up a hair with your foot, I would say. The only difference is that you could disengage it whenever you wanted to.

PS, Jarred, did you get my PM concerning Mid-Ohio ?

fatcaaat · 07-19-2008, 07:01 PM

Quote:

Originally Posted by dirtbkr188

Essentially, that would be the same as "toeing" the shift lever up a hair with your foot, I would say. The only difference is that you could disengage it whenever you wanted to.

PS, Jarred, did you get my PM concerning Mid-Ohio ?

Yeah...I got the message. I'll be on the lookout for it.

For the clutch...do you think it would work?

BlackBeard · 07-19-2008, 07:18 PM

ive heard that would work, ive seen people on other boards do it with sucess and actually like it. u simply run what you said. stock clutch with manual cover.

50rider340 · 07-19-2008, 07:55 PM

thats a sweet idea. If it works out let us all know

dirtbkr188 · 07-19-2008, 09:08 PM

Quote:

Originally Posted by fatcaaat

For the clutch...do you think it would work?

I think it would work, how well is another story. I'll have to look around here and see if I have the parts to assemble an engine, and try it.

BlackBeard · 07-19-2008, 10:14 PM

i looked around the other sites and i have concluded that it is overall an excellent setup and suprisingly alot of people run them but ive never heard anyone talk about it here. i think Firepower mentioned it to me once but i say you cant go wrong

LasVegasStreetterror · 07-19-2008, 10:20 PM

I have done this mod before, but it may only work on a low horsepower build. The first time I used an auto/centrifugal clutch from a Kazuma 90 atv motor mounted to a 54mm crank (zongshen).. No clutch lever though because it was not a pressure plate xr/crf style clutch basket, instead it was a 3 arm centriful with a bell. making the clutch grab when you raised the rpm's but it did not hold to well under heavy load 7k+ rpm ? Maybe it would be a good idea if better parts are used..

arlindsay1992 · 07-20-2008, 09:51 AM

I think it would work fine if both the clutch have the same height. I am talking about the height of the assembled clutches sitting flat on a table next to each other. If one is taller then it wouldn't work. I have thought about this before too but I always talked myself out of it.

dirtbkr188 · 07-22-2008, 03:22 PM

I took some preliminary measuremants today, and I think I'm onto something, details to come...

arlindsay1992 · 07-22-2008, 03:45 PM

What exactly are the advantages to this? It doesn't really count as a slipper. When coasting, there is still engine braking because of the mechanism that engages the auto clutch for kickstarting. So it doesn't reduce engine braking. I guess you don't ever have to worry about stalls. But other than no stalls, is there really any point?

07-19-2008, 06:26 PM	#1 (permalink)
fatcaaat 3rd Gear Member Join Date: Sep 2004 Location: Arlington, VA Posts: 3,780	Making a Slipper? Alright...here's one I thought I would do, but want to see what you think. Is it possible to put an automatic clutch basket on and then swap shift shafts and run a manual clutch cover? So, essentially, you have a slipper clutch setup...the auto runs like normal, but to shift gear to gear, you have to pull in the clutch lever? What do you think...will it work?

07-19-2008, 06:40 PM	#2 (permalink)
70sdiscotrike 2nd Gear Member Join Date: Dec 2006 Location: Lake Charles, Louisiana Posts: 580	Re: Making a Slipper? Wait - that makes no sense at all. If you need the clutch to shift - it's a manual. If you're thinking of using what the autocrossers use - where you use the clutch for a holeshot, but then shift like an auto. Maybe you got confused?? DAVE

07-19-2008, 06:45 PM	#3 (permalink)
dirtbkr188 3rd Gear Member Join Date: May 2004 Location: New Jersey Posts: 2,972	Re: Making a Slipper? Essentially, that would be the same as "toeing" the shift lever up a hair with your foot, I would say. The only difference is that you could disengage it whenever you wanted to. PS, Jarred, did you get my PM concerning Mid-Ohio ?

07-19-2008, 07:18 PM	#5 (permalink)
BlackBeard "ZBBT" Join Date: Oct 2007 Location: 50 riders Posts: 1,836 My Mood:	Re: Making a Slipper? ive heard that would work, ive seen people on other boards do it with sucess and actually like it. u simply run what you said. stock clutch with manual cover.

07-19-2008, 07:55 PM	#6 (permalink)
50rider340 3rd Gear Member Join Date: Mar 2004 Location: CT Posts: 3,083 My Mood:	Re: Making a Slipper? thats a sweet idea. If it works out let us all know

07-19-2008, 10:14 PM	#8 (permalink)
BlackBeard "ZBBT" Join Date: Oct 2007 Location: 50 riders Posts: 1,836 My Mood:	Re: Making a Slipper? i looked around the other sites and i have concluded that it is overall an excellent setup and suprisingly alot of people run them but ive never heard anyone talk about it here. i think Firepower mentioned it to me once but i say you cant go wrong

07-19-2008, 10:20 PM	#9 (permalink)
LasVegasStreetterror 3rd Gear Member Join Date: Nov 2007 Location: Las Vegas, Nevada Posts: 1,091 My Mood:	Re: Making a Slipper? I have done this mod before, but it may only work on a low horsepower build. The first time I used an auto/centrifugal clutch from a Kazuma 90 atv motor mounted to a 54mm crank (zongshen).. No clutch lever though because it was not a pressure plate xr/crf style clutch basket, instead it was a 3 arm centriful with a bell. making the clutch grab when you raised the rpm's but it did not hold to well under heavy load 7k+ rpm ? Maybe it would be a good idea if better parts are used.. Last edited by LasVegasStreetterror; 07-19-2008 at 11:01 PM.

07-20-2008, 09:51 AM	#10 (permalink)
arlindsay1992 "High Speed Record Guy" Join Date: Mar 2006 Location: Northern Virginia Posts: 4,369	Re: Making a Slipper? I think it would work fine if both the clutch have the same height. I am talking about the height of the assembled clutches sitting flat on a table next to each other. If one is taller then it wouldn't work. I have thought about this before too but I always talked myself out of it.

07-22-2008, 03:22 PM	#11 (permalink)
dirtbkr188 3rd Gear Member Join Date: May 2004 Location: New Jersey Posts: 2,972	Re: Making a Slipper? I took some preliminary measuremants today, and I think I'm onto something, details to come...

07-22-2008, 03:45 PM	#12 (permalink)
arlindsay1992 "High Speed Record Guy" Join Date: Mar 2006 Location: Northern Virginia Posts: 4,369	Re: Making a Slipper? What exactly are the advantages to this? It doesn't really count as a slipper. When coasting, there is still engine braking because of the mechanism that engages the auto clutch for kickstarting. So it doesn't reduce engine braking. I guess you don't ever have to worry about stalls. But other than no stalls, is there really any point?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)