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Old 04-26-2011, 07:14 AM   #61
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Quote:
Originally Posted by MaraBiker View Post
This is going to be one of the best resto thread. I just love this Zundapp. Best of luck!
..I'm pretty "bummed out" that I have to leave the bike sit for a couple of months while I'm out of state for work. Haven't been separated from my MC's for more than a few weeks ...ever. .....The bike projects have always been my favorite pastime in my off hours. It's gonna suck not having my "friends" nearby...I'll be going nuts....
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Old 04-26-2011, 07:48 AM   #62
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My very first scooter was this model. Made it go almost 60mph.
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Old 04-26-2011, 07:53 AM   #63
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Originally Posted by uraberg View Post


My very first scooter was this model. Made it go almost 60mph.
I had an old Puch Moped that looked almost exactly like that. That little thing went like hell! It would do right at 60mph with the 65cc kit, carb, porting and chamber I installed on it!
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Old 05-04-2011, 06:41 AM   #64
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"Runs like a sewing machine"?


Zundapp Chopper



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Old 05-21-2011, 06:29 PM   #65
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Zundapp Advertising

Zundapp apparently realized the importance of marketing...some pretty cool ads:

























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Old 08-02-2011, 07:37 PM   #66
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Well I'm finally back "home" after a 3 1/2 month separation from my projects.
I spent a little time last night and installed the replacement transmission linkage I had purchased. The old linkage had been jury rigged and it slipped on the shifter rod. This bike has a left side shift lever, with a rod running through the transmission to the right side linkage....the earlier KS600 bikes also had a hand shift lever which attached to the linkage shown. The linkage below was split at the bottom and a PO had used pinch bolts in an unsuccessful attempt to repair it. I found a decent used linkage assembly, although not very cheap......but then nothing is cheap for a Zundapp KS.



I found this reproduction headlight ring which is a replacement for my very banged up and dented one...I'm finding it difficult to replace functional, although beat up, parts for shiney new parts. Just doesn't fit the patina.

\

I plan on tearing into the engine top end again pretty soon to see if the 3 1/2 month oil soak has free'd up the pistons in the bores.
I've found NOS Zundapp over size rings for around $50.00 a set. They sell them at .10 - .30 oversize which is good.
I always buy oversize rings and then file them down to the exact ring gap tolerances. Hopefully the pistons are OK...we'll see when I make my next post with some gory, disembowled Zundapp engine photos.
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bmwhacker screwed with this post 08-02-2011 at 10:00 PM
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Old 08-03-2011, 08:40 AM   #67
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Woo hoo! I like this bike.
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Old 08-16-2011, 09:56 PM   #68
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Damn Wacker you sure know how to pick 'em!

I just acquired a 1956 KS 601 EL and I'll be following this thread closely.
Never seen one before, never wanted one, didn't even know they existed.
After taking a first look at mine I knew I couldn't pass it up.
Hoping to rig up my ACAP sidecar and roll up some serious blacktop miles (probably some browntop too!)
These are serious machines, more expensive than a BMW to produce and Zundapp refused to compromise the product in order to compete in the new markets of the late 1950s.

I am a Zundapp Fool! Let's get 'em running!

Don Bachtel
Nipomo, California
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Old 08-17-2011, 08:29 AM   #69
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Originally Posted by D.Bachtel View Post
Damn Wacker you sure know how to pick 'em!

I just acquired a 1956 KS 601 EL and I'll be following this thread closely.
Never seen one before, never wanted one, didn't even know they existed.
After taking a first look at mine I knew I couldn't pass it up.
Hoping to rig up my ACAP sidecar and roll up some serious blacktop miles (probably some browntop too!)
These are serious machines, more expensive than a BMW to produce and Zundapp refused to compromise the product in order to compete in the new markets of the late 1950s.

I am a Zundapp Fool! Let's get 'em running!

Don Bachtel
Nipomo, California






Cool, The EL is super rare from what I've heard ...only a few hundred of them built. I'm hoping to have some progress on my project in the upcoming weeks. How about some photos of yours?
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Old 08-17-2011, 09:45 AM   #70
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Will do, as soon as I can get it all in one place.
Spent last night til 12 sorting thru masking tape labeled twist tie sandwich bags from 1974 looking at all the goodies that were put away.
The guy I bought it from is 74 and has trouble with memory....
I'm missing one box with the top triple tree, rear fender lower section, plate holder and a few other things.
Complete exhaust system is at another garage he stored things away in 1984....
Hope it all turns up.

Don in Nipomo
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Old 08-17-2011, 10:02 AM   #71
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Originally Posted by D.Bachtel View Post
Will do, as soon as I can get it all in one place.
Spent last night til 12 sorting thru masking tape labeled twist tie sandwich bags from 1974 looking at all the goodies that were put away.
The guy I bought it from is 74 and has trouble with memory....
I'm missing one box with the top triple tree, rear fender lower section, plate holder and a few other things.
Complete exhaust system is at another garage he stored things away in 1984....
Hope it all turns up.

Don in Nipomo
Wow ..kind of like an Archeological Expedition! I love stuff like that. I was fortunate to obtain mine in one piece. My goal was to have my engine running this Summer but now will be Fall at the earliest. And that depends on internal engine conditions........Prepare to lighten your wallet.
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Old 08-17-2011, 11:18 AM   #72
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Hoping for the best on the engine. Intake and exhaust ports were blocked off with blank plates and rubber at the time of disassembly. This was a running bike stripped down for paint. Don't think it was broken. The engine itself is one big lump. Appears as if it has never been opened. All fasteners are unmolested. Someone took a great deal of care taking it all apart. Everything is marked and labeled. I can hope but who knows until I open it up a bit more....

Don in Nipomo
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Old 08-17-2011, 02:51 PM   #73
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Originally Posted by Edwards View Post
I stumbled on this thread and the picture in the first post jarred my memory of an old picture I have of my father. I wrote him and asked him where the photo was taken and what the bike is - this is his reply:

"It's my new 1956 Zundapp taken in my folks back yard. I worked at the steel
mill and borrowed a partial amount from mom & dad to buy it. Gave the dealer
$800.00 for the bike, a 600 c.c. shaft drive."

Cheers.
Cool!
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Old 08-17-2011, 06:33 PM   #74
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Originally Posted by bmwhacker View Post
I've been studying the Zundapp KS601 Service Manual.
Some seriously "Old School" engineering going on here:
(Good thing I still smoke occasionally)

"If too much material is ground off the big end when adjusting, attach 1.5mm wide tinfoil strips to these parts of the connecting rod (27) as a chuck. Cigarette tinfoil is about 0.01mm thick. Tinfoil may under no circumstances extend into the bearing tracks or protrude at the sides."

Figure 27 -> = here tinfoil




Connecting Rod Adjustment:

"For the adjustment remove the connecting rod as specified. Put a piece of polishing cloth on the surface plate and on that whet the joints of the big ends one after another (25). One face has to be on the polishing cloth and one on the blank plate (25). Count every stroke to get even abrasion on both sides. Recommended are 20 strokes on each side before reinstalling the connecting rods.
In most cases this procedure has to be done 4 to 5 times to achieve an optimal fit."




A lot of the tools seen in the manual look like old carpentry tools.

I'm starting to get a little scared. My woodworking skills are pretty poor.

I love the 30's engineering
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Old 08-18-2011, 05:00 AM   #75
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Originally Posted by beys View Post

When we were kids back in the 70s, we were allowed to ride small mopeds limited to 15mph, so those Zündapp were the most wanted


because it was possible to fit the 6hp-cylinder of that one
Had a moped with a fan-cooled Sachs engine that looked identical to the one above. Mine was 2.5hp in stock form, with a 60cc kit and 17mm Bing carb it was supposed to be around 7hp. Never had the $$ to obtain the correct ex. pipe so mine was maybe 5hp on a good day.


Quote:
Originally Posted by fyr View Post
If I won the lottery and had the dosh the first bike id buy is an original (or close to) Wermacht issue Zundapp KS750 hack. Way over engineered for a bike of the era but sweet. Tank enveloped by huge frame, 2wd, 4 spd road gearbox and low 4 spd "gelande" gear box..
It's engine is a slight Vee (not flat). Lots of $$ for a good example.
Yeah , The KS sure sounds like quite an impressive bike.
I read that it actually is a 170 degree v-twin. And cost 2x as much in materials and time to produce than a kübelwagen

more info: http://bcozz.multiply.com/journal/item/2158
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