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Cat-O-Ring Throttle Cruise Control

17K views 18 replies 12 participants last post by  oldndumb 
#1 ·
There have been bunches of posts of throttle locks and other techniqies to take the strain off the right hand on longer trips.

Here is a shot of my ORING throttle lock in the off position.


And here is a shot with the ORING in the on position.


In this shot you can see where I have twisted the throttle about a 1/3 of its travel and the oring holds it there. Note that even though the throttle is held in a position, even with the oring engaged, full range of throttle motion can still be used, so in that rare emergency where you need to de-throttle, you just do it, rather than having to disengage something prior to backing off the throttle.... and it is about as cheap a solution as you can get!


You can also see in each picture the newer style Throttle Rocker, that uses the velcro strip. I have found that with proper effort one can secure the ***** thing so it works right. Between it and the ORING, long rides are a breeze.

[ This message was edited by: JasonS on 2006-04-10 13:45 ]
 
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#4 ·
Caterpillar Part Number = 8M4991

I picked up a dozen of them a few years ago @ $2.50/each, though mine are yellow. They last about a year before they get too worn out to work properly. One of the best farkles you'll ever buy.

[ This message was edited by: DFWBiker on 2006-04-10 15:31 ]
 
#8 ·
Go to any industrial shop, hydraulics shop and ask for a #321 Oring... between $.35 and $2.00 depending on how greedy they get.

3 = the number of 1/16"s of an inch the cord of the Oring is and 21 is the number of 1/16ths the inside diameter of the oring. a larger gap would need a larger diameter, a smaller gap and small diameter cord..

When they slip, they need to be cleaned. you can use a light solvent to get the grease off the rubber.

The '05 may be different enough for the 02-04 that the std Oring doesn't work... if it slips, maybe a #421 oring would work?? Anyone familiar with the 05 and what the gap is like vs an <04 model?
 
#13 ·
On 2006-04-11 13:43, jdscott74 wrote:
I'm trying to look up the part on Advance Auto Part's site, but don't know which part number is right.

O-Rings

ratrider, which one did you get?

3/16" diameter and about 1-1/4" diameter

Part numbers for Orings are made up.... out of the blue..


the Std Industrial designation for the ring I use is a #321

have him bring you the box of Orings and pick one out..

too large isn;t good, too small will still work.
 
#15 ·
I just got mine last night from Advanced Auto Parts after I saw ratrider's response. Based on Jason's 321 explanation, it should be 3/16" thick and 21/16th (1 & 5/16") inside diameter. All they had was 1 & 1/4" ID, but this does the trick for me.
 
#16 ·
I bought an 3/16 x 1 1/4 ID O-Ring last night and gave it a try. It rolled nicely off the bar weight over to the grip, but then part of the O-ring would sink between the grip and the weight. I would never be able to roll it back out onot the weight while riding. What's the problem here? No one else seems to have had this problem as far as I can tell.
 
#18 ·
OnD,

Most of the o-ring stayed between the grip and the weight around the perimeter, but some of it got squashed down in-between. I took the wieght off to see if it was installed all the way on and it was. I guess I'll try a different o-ring or one slightly larger.
 
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