Club Chopper Forums ychrome  

Go Back   Club Chopper Forums > CHOPPER SHOP/TECH AREA > Shop Talk

Welcome to Club Chopper!  The World's largest and coolest place to be on the net if you dig the following!

  •  » Custom Bikes
  •  » Killer Paint
  •  » Old School Craftsmanship
  •  » Building and Wrenching
  •  » Hot Babes
  •  » Chopper Build Logs

...then you have come to the right place!

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

Chopper Tech
Tech Article
Tech Article
Tech Article
Tech Article
Tech Article
Main Menu
Module Jump:
Club Chop Gallery

Club Chopper Gallery

Submit Your Photos!

Active Threads
Ultima 140
Last Post: Neverlost
Posted On: Today
Replies: 24
Views: 2,459
CfL top motor mount
Last Post: robertarner
Posted On: 03-07-2024
Replies: 1
Views: 791
Post up WCC Engraved Air Cleaner Pics
Last Post: Choppa
Posted On: 03-01-2024
Replies: 66
Views: 20,364
Drive Belt question for Iron Horse Judge
Last Post: veronawhite
Posted On: 02-28-2024
Replies: 1
Views: 485
More...
  #1 (permalink)  
Old 11-15-2017, 06:34 PM
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Oct 2017
Location: Ardmore, Ok
Posts: 15
Not Ranked     
Ultima Jackshaft Problem

I have the ultima open primary and sometimes the jackshaft seems to get stuck and not pop out. I’ve read about alignment issues and the shaft not retracting but haven’t heard of anyone having my problem.

It sounds like a dead battery when I push the button. Soft clunk sound. The shaft sounds to be in a bind or bottoming out after maybe 1/8 inch movement. If I loosen the shaft cover just ever so slightly and push the button again it comes out and fires. It’s always hit and miss. Sometimes it will work flawlessly a couple times a day, then it’s will pop out and ‘zing’ and grind and may or may not catch.

Any suggestions?
Reply With Quote
Sponsored Links
  #2 (permalink)  
Old 11-16-2017, 04:19 AM
STEINBVG's Avatar
Club Chopper Member
Visit my Photo Gallery
 
Join Date: May 2010
Location: ATLANTIC CITY, NJ
Bike Year, Make, Engine: 2010-19; MYSELF; 96",113",120",127"
Posts: 3,347
Not Ranked     
Quote:
Originally Posted by DeafBillyGoat View Post
I have the ultima open primary and sometimes the jackshaft seems to get stuck and not pop out. I’ve read about alignment issues and the shaft not retracting but haven’t heard of anyone having my problem.

It sounds like a dead battery when I push the button. Soft clunk sound. The shaft sounds to be in a bind or bottoming out after maybe 1/8 inch movement. If I loosen the shaft cover just ever so slightly and push the button again it comes out and fires. It’s always hit and miss. Sometimes it will work flawlessly a couple times a day, then it’s will pop out and ‘zing’ and grind and may or may not catch.

Any suggestions?
Granted your battery and starter are fine
1) make sure the gap between the ring gear and the jack-shaft gear is 1/8''- use more or less shims to achieve that. Too close- click, no engagement. too far- heavy banging and also possible lack of engagement.

look at the distance here. Never mind the jack shaft housing setup. actually i made it using ultima dimensions as a template. Worked out great.


2) when you tighten the cover, push it up with your finger as far as the sloppy holes allow and then tighten it in that position[ it may improve vertical clearance].
3) put some wheel lube on the jack shaft gear and inside the bushing

I had experience with 3 ultima primaries and never had to go for the 'fix' jack shaft, although i can see how it's sloppy design makes alignment easier
__________________
VITALY.
SORRY FOR THE UPPER CASE. CAN'T SEE SHIT.
113"s&s, Walz softail 2000/2012 prostreet
96"s&s, Daytec dyna/ softail hybrid, 1998/2010 chopper
127"Ultima, Chassis Design rigid 2013 bobber
120"Ultima, Kraft Tech FL 2014/2019 bobber
Reply With Quote
  #3 (permalink)  
Old 11-16-2017, 09:47 AM
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Oct 2017
Location: Ardmore, Ok
Posts: 15
Not Ranked     
Quote:
Originally Posted by STEINBVG View Post
Granted your battery and starter are fine
1) make sure the gap between the ring gear and the jack-shaft gear is 1/8''- use more or less shims to achieve that. Too close- click, no engagement. too far- heavy banging and also possible lack of engagement.
My spacing is at 1/4 inch.

So my dumb question for the day is, where does a shim go? Before or after #11, or another spot?

Reply With Quote
  #4 (permalink)  
Old 11-16-2017, 10:10 AM
STEINBVG's Avatar
Club Chopper Member
Visit my Photo Gallery
 
Join Date: May 2010
Location: ATLANTIC CITY, NJ
Bike Year, Make, Engine: 2010-19; MYSELF; 96",113",120",127"
Posts: 3,347
Not Ranked     
Quote:
Originally Posted by DeafBillyGoat View Post
My spacing is at 1/4 inch.

So my dumb question for the day is, where does a shim go? Before or after #11, or another spot?

CHECK OUT ULTIMA PDF INSTALLATION FILE, # 6, WHERE THEY RECOMMEND .150" CLEARANCE[ I THINK OK .125-.150].
http://www.ultimaproducts.com/BeltDrive.pdf
ALSO THE GEAR SHOULD BE ABLE TO FREELY MOVE .125 " IN AGAINST THE SPRING- THAT ALLOWS FOR THE GEAR TO ENGAGE THE RING GEAR EASIER.

AS FAR AS SPACING- YOU MAY NEED ABOUT 1/8" WASHER PLACED BEHIND THAT SPLINTED SPACER. THE SHOCK SPRING GOES IN FRONT OF IT.
__________________
VITALY.
SORRY FOR THE UPPER CASE. CAN'T SEE SHIT.
113"s&s, Walz softail 2000/2012 prostreet
96"s&s, Daytec dyna/ softail hybrid, 1998/2010 chopper
127"Ultima, Chassis Design rigid 2013 bobber
120"Ultima, Kraft Tech FL 2014/2019 bobber
Reply With Quote
Sponsored Links
  #5 (permalink)  
Old 11-16-2017, 10:31 AM
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Oct 2017
Location: Ardmore, Ok
Posts: 15
Not Ranked     
Quote:
Originally Posted by STEINBVG View Post

AS FAR AS SPACING- YOU MAY NEED ABOUT 1/8" WASHER PLACED BEHIND THAT SPLINTED SPACER. THE SHOCK SPRING GOES IN FRONT OF IT.
Thanks for the help, I’ll post the results after I work on it.
Reply With Quote
  #6 (permalink)  
Old 11-28-2017, 09:06 AM
pushrod243's Avatar
Club Chopper Sponsor
Visit my Photo Gallery
 
Join Date: Aug 2004
Location: Central Florida, FL
Bike Year, Make, Engine: Custom
Posts: 13,709
Blog Entries: 333
Send a message via Yahoo to pushrod243
Not Ranked     
The Belt Drive fix will fix this if you cannot get it to go away by readjusting it.

John
__________________
John
Scooters Performance
31615 Long Acre Dr
Suite 104
Sorrento, FL 32776
www.scootersperformance.com
(four0seven)330-2056

Reply With Quote
  #7 (permalink)  
Old 11-29-2017, 03:07 PM
Nitroearl's Avatar
Club Chopper Member
Visit my Photo Gallery
 
Join Date: Mar 2012
Location: Snellville, Ga
Bike Year, Make, Engine: 1995 Softail springer S&S 107"
Posts: 54
Not Ranked     
I had the same problem. Got the belt drive fix from Scooters Performance, fixed the problem.
Reply With Quote
  #8 (permalink)  
Old 12-01-2017, 01:30 PM
pushrod243's Avatar
Club Chopper Sponsor
Visit my Photo Gallery
 
Join Date: Aug 2004
Location: Central Florida, FL
Bike Year, Make, Engine: Custom
Posts: 13,709
Blog Entries: 333
Send a message via Yahoo to pushrod243
Not Ranked     
https://scootersperformance.com/scoo...ives-p-24.html

Pretty much what the fix was designed for. You can sometimes keep adjusting and find a happy spot for the standard jackshaft but the fix pretty solves any issues. I have sold a ton of them and always use them on any in house projects that have a BDL or Ultima belt drive.....
__________________
John
Scooters Performance
31615 Long Acre Dr
Suite 104
Sorrento, FL 32776
www.scootersperformance.com
(four0seven)330-2056

Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -7. The time now is 07:01 PM.


vBulletin skins developed by: eXtremepixels
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.0

CC Policy

The representations expressed are the representations and opinions of the clubchopper.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners or moderators. clubchopper.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you or have been given the expressed written consent to post. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). For full policy, please click the "CC policy" link. Thank you for visiting the clubchopper.com
Links monetized by VigLink