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The above catalog was probably a dealer version of the items sold in that era. Jesse Thomas of Cadiz, Ky. was a Penton dealer in the early 70's. Him and his son Bobby raced all the major events in the southeast. Bobby and Jesse were close friends of mine at that time and we traveled to many races together. They also promoted races in Western Kentucky under the group called Western Kentucky Competition Trail Riders Association.
I am sure many of the POG members remember these two.....

Hey firstturn.....
It's [email protected]
I'm off the Penton project for now, trying to finish up a honey do landscape project before returning to the Penton.

Boy, you guys are a wealth of information. Sounds like you have all been there, done that. I think these tranny shifting problems is why I always raced the KTM versions back in the day. I remember well the problems my buddies had with the Sachs trannys.
During my many attempts to adjust this out I did get the shift fairly good at one time. It would go into gear if I rode slowly and did not accelerate hard once in gear. It would get all gears. The more I adjusted the worse it got. I made adjustments at the rate of about .005 movement at a time and measured each time. When I went back to that point of best shift it continually jumped in and out of gear, even in the higher gears. What I did not do during this operation was leave the stops backed off. Could I have been defeating my adjustment by retightening the stops each time?
I have taken a break from this frustration for a while but will continue in a few days.
Thanks for all the input, I will certainly let you all know the outcome.
Jerry

Well, that process is certainly interesting. I haven't decided yet which way to go. I am leaning towards splitting the cases just to determine if there is any damage to the gears. I have the bike sold but will not sell  it until I am sure there is no damage and all is good. I didn't have any luck finding JP thru the search feature. The pictures are certainly helpful, thanks Brian and  Ernie. I wish I understood the mechanism a little better but I did not disassemble this when I built the motor. Shame on me.
All help is greatly appreciated.
Thanks,
Jerry

Hey guys,
You are probably right, I took the entire shift assembly out tonight and inspected each piece. Not much wear anywhere and like I said earlier I have been at about every adjustment angle possible with no results. Could the key shear off or break all at once? Because that is the way it happened, maybe a little mis-shift a day or two prior but I blamed that on my grandson not shifting properly. He kept telling me it was not shifting the same but this all happened within 2 or 3 miles of riding at the most.
Brian, I don't see how that key could be changed without splitting the cases but I would certainly like to have Ernie's approach. Can you connect for me? And where do I get the good J P Morgen key?

Hi Brian,
Thanks for the input. I used all the original parts except the clutch pressure plate(which was missing) and some shims. All components were in great shape as this unit had been in storage since 1983.
What part are you calling the key? What other parts might be worn and cause this. I just tried the 6th gear adjustment method that Ron had recommended.
I removed the cover(for the 22nd time, ha ha) removed the clutch pak to access the stops and loosened both. I had good slack while holding down on the shifter in first gear but in 6th gear it was binding so I adjusted until I got slack in the fork and rechecked 1st and still had slack there. I put everything back together and now it will not go into 1st at all. It sounded like it was going into second but jumped out as soon as I released the clutch. Basically, no gears.
Thanks again and keep the ideas coming..
Jerry

Hey Ron,
Thanks a bunch for the reply. I have been everywhere with the selector adjustment with no results. I will try the 6th gear method today. As posted eariler the Sachs shifted perfectly (as perfect as a Sachs can get)and for no reason it went south.
I don't feel it is a shimming problem because it was so good until now. I do have a lot of play up and down in the selector lever but see no shim notes regarding this. The screw pin that holds the lever in place is tight and shows no wear, (the screw coming thru the case at the rear).
I have not yet dismantled the selector lever to check for wear in the cam bolt. I'll try your method first and get back to you.
Again,
Thanks a bunch and hope it works...

Thanks Mick,
 I am getting a little better. Five weeks into this, collar bone is healing well but still unable to lie on right side due to bone bruising in hip area and cracked ribs. Calf and ankle area is good, able to walk without problem. Torn shoulder muscle seems ok but unable to test due to collarbone.
I'm going to miss you guys but this cat's used up about 5 or 6 of his 9 lives over the years. It's time to retire.....again.
Jerry

Congrats Jack, you are THE MAN....
Jerry

Ron,
It was a pleasure meeting you at Diamond Don's. I had heard many stories about you and most were true. You are a gentleman and I was very impressed with your offers to help in any way you could. I only wish I could have spent more time talking old stories with you but you left about the time I was hauled off to the hospital in the Ambulance.
I had a major crash in the second moto and spent over a week just trying to get back to Kentucky.
I am home now recovering from my injuries and hope you are doing well also. I know you have been through a lot lately and as you said, we are all blessed to be able to do what we enjoy so much. The Diamond Don episode is one for the books.

Have a great season,
Jerry Chafton

Paul,
I would also like to have an order form. Please send to my Kentucky address.
Jerry

Yes, I got the trailer ready today. The weather looks much better for the race than it has been down here lately. Look forward to seeing you guys. I noticed in the pre-registrations that the Penton count was very low.
Jerry

Sweet.......

Thanks CJ, I guess I'll sign up for both..

What's the problem with the MX track, I have not been there but I am currently in SW Florida and have my Penton with me. I intend to ride the CC and am thinking about the MX but not if it is not a good Vintage friendly track.
Jerry