Penton Owners Group

General Discussion => Penton Talk => Topic started by: ccmnova on May 07, 2016, 08:32:40 PM

Title: Need Help - Downshift Issue
Post by: ccmnova on May 07, 2016, 08:32:40 PM
74, 125-6 Days. Running good however the downshifting is a problem - can't seem to get it downshift correctly and keeps getting stuck in a higher gear, etc.  Can anyone tell me what the problem could be ?

(http://i860.photobucket.com/albums/ab162/ccmnova/Penton/IMG_20160507_183925.jpg) (http://s860.photobucket.com/user/ccmnova/media/Penton/IMG_20160507_183925.jpg.html)
Title: Need Help - Downshift Issue
Post by: G Ellis on May 07, 2016, 08:34:01 PM
Need to adjust shifter linkage.
Title: Need Help - Downshift Issue
Post by: Mickey Sergeant on May 08, 2016, 12:12:24 PM
That's also assuming if all is shimmed correct internally
Title: Need Help - Downshift Issue
Post by: firstturn on May 08, 2016, 12:28:59 PM
This should help.  Trying this is easy then if it works you do not have to worry about internal shimming.

Keeping Track June 1973:

http://www.pentonusa.org/forum/topic.asp?TOPIC_ID=12000&SearchTerms=shift







Ron Carbaugh
Title: Need Help - Downshift Issue
Post by: skiracer on May 08, 2016, 05:28:25 PM
Wow!  great write-ups!  Looks like a must for any Sachs owner...


Quotequote:Originally posted by firstturn

This should help.  Trying this is easy then if it works you do not have to worry about internal shimming.

Keeping Track June 1973:

http://www.pentonusa.org/forum/topic.asp?TOPIC_ID=12000&SearchTerms=shift







Ron Carbaugh


1976 MC 5 Original Owner
1982 Suzuki PE 175
1976 Penton 175 XC
1985 20' Hi Point trailer
Title: Need Help - Downshift Issue
Post by: ccmnova on May 10, 2016, 01:20:31 PM
Quotequote:Originally posted by firstturn

This should help.  Trying this is easy then if it works you do not have to worry about internal shimming.

Keeping Track June 1973:

http://www.pentonusa.org/forum/topic.asp?TOPIC_ID=12000&SearchTerms=shift

I cant get these - please email these to me at [email protected]





Ron Carbaugh

Title: Need Help - Downshift Issue
Post by: gooddirt on May 10, 2016, 02:50:24 PM
First back off on the down-shift  ( over shift)  cam lobe, make sure the selector pawl is not (looks like wings) touching to close and is blocking  your down shifts....MOST  of the time this will solve it ...
Title: Need Help - Downshift Issue
Post by: firstturn on May 10, 2016, 05:31:24 PM
Gooddirt makes a good point.

Ron Carbaugh
Title: Need Help - Downshift Issue
Post by: ccmnova on May 11, 2016, 08:11:56 PM
Quotequote:Originally posted by gooddirt

First back off on the down-shift  ( over shift)  cam lobe, make sure the selector pawl is not (looks like wings) touching to close and is blocking  your down shifts....MOST  of the time this will solve it ...
I'm not fully understanding - is there some kind of procedure available to adjust ? my email is [email protected]
Title: Need Help - Downshift Issue
Post by: ccmnova on May 11, 2016, 09:19:43 PM
being told that the case has to be split to change the shift key, etc.  Is this correct ?  I saw in one of the write ups that the key can be changed with a pencil magnet (?)
Title: Need Help - Downshift Issue
Post by: Mickey Sergeant on May 11, 2016, 10:57:43 PM
This is a way I use to get an idea if things are shimmed correct. grab the counter sprocket and pull it in and out. there should be no play. With the clutch basket off, grab the clutch boss, there should be no play there. If there is play then not shimmed correct internally.You will never be able to adjust the sifting device correct

Hope this helps
Title: Need Help - Downshift Issue
Post by: ccmnova on May 12, 2016, 09:20:56 AM
I'm in the Pittsburgh area and can bring my bike anywhere within say 4 hours drive - do any of you know a capable shop or mechanic who can do this shifter adjustment procedure for me - ?
Title: Need Help - Downshift Issue
Post by: Larry Perkins on May 12, 2016, 09:24:45 AM
Mickey is correct. Improper internal shimming and you will constantly adjust and never quite get there allowing MANY false neutrals.  Doug Wilford was the wiz at shimming and it is why his motors shifted as well as they did.  Of course Doug could also adjust with a blind fold on.

Larry P
Title: Need Help - Downshift Issue
Post by: gooddirt on May 12, 2016, 03:14:14 PM
50/50 chance it the cam lobe... as he can up shift fine and said it did not miss a shift... this is my base line, try the easy way first...  [:p]
Title: Need Help - Downshift Issue
Post by: ccmnova on May 20, 2016, 08:48:59 PM
Still looking for someone who is capable to make this adjustment - can anyone recommend a shop or ?

(http://i860.photobucket.com/albums/ab162/ccmnova/IMG_20160508_155008.jpg) (http://s860.photobucket.com/user/ccmnova/media/IMG_20160508_155008.jpg.html)
Title: Need Help - Downshift Issue
Post by: Dale Fisher on May 21, 2016, 06:11:34 AM
Might try a call to Crazy Jake?

Fischer Competition Cycle
New O.E.M. Parts for
PENTON-HERCULES-HUSKY-HODAKA-C.Z.-CAN-AM
744 Pittsburgh Road
Butler, PA 16001
(724) 586-7383
(412) 781-6309

Dale Fisher
Penton Owners Group - President/Memberships
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Mudlark Registry
Facebook - Penton Owners Group - Administrator
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Title: Need Help - Downshift Issue
Post by: brian kirby on May 28, 2016, 07:11:33 PM
Quotequote:Originally posted by ccmnova

being told that the case has to be split to change the shift key, etc.  Is this correct ?  I saw in one of the write ups that the key can be changed with a pencil magnet (?)

The shift key can be replaced without splitting the cases, I have done it. There is a writeup with pictures here posted a few years ago by my cousin Ernie Phillips that shows how do it step by step.

Brian
Title: Need Help - Downshift Issue
Post by: Dale Fisher on May 30, 2016, 07:26:52 AM
Just to add one other potential cause of shifting woes.  Make sure the shift lever is not pushed on too far and binding on the clutch case around where it mounts on the shaft.

Dale Fisher
Penton Owners Group - President/Memberships
POG Merchandise
Mudlark Registry
Facebook - Penton Owners Group - Administrator
Facebook - Cheney Racing Group - Administrator
Title: Need Help - Downshift Issue
Post by: ccmnova on July 01, 2019, 09:51:13 PM
Still looking for someone who is capable to make this adjustment - can anyone recommend a shop or ? Both of those numbers for Jake are not in service.