OzVMX Forum

Marque Remarks => CZ => Topic started by: firko on February 27, 2008, 11:01:41 pm

Title: Four Stroke CZ.
Post by: firko on February 27, 2008, 11:01:41 pm

Here's one for you hot rod engineering junkies, a Jawa 898 4 valve speedway top end grafted to a CZ 514 400 2 stroke bottom end. I'd love to have a look at how he did it. You can bet Alan Jones will go apeshit over this and want to build an Evo version of Black Betty!
(http://img.villagephotos.com/p/2005-8/1062154/jawacz.jpg)
(http://img.villagephotos.com/p/2005-8/1062154/jawacz1.jpg)

Title: Re: Four Stroke CZ.
Post by: eno on March 04, 2008, 09:18:29 am

Truely a masterpiece of grafting, very interested to see a pic of R/H side. Kickstarting a high comp' 380 can be scary, wonder what it's like booting that one over.  :o

Title: Re: Four Stroke CZ.
Post by: Hoony on March 04, 2008, 04:55:57 pm

i'd be thinking its a push start job.

Title: Re: Four Stroke CZ.
Post by: NR555 on March 17, 2008, 07:05:59 pm

I'm thinking methanol + castrol R  ;)

Title: Re: Four Stroke CZ.
Post by: Tim754 on March 20, 2008, 11:27:21 pm

Did CZ have anything thing major to do with ESO and other Speedway type four strokes, Have seen some glorious VMX one offs over the years,with ESO , Jawa and other motors but lost my collection of photos of them in shed fire. Tim

Title: Re: Four Stroke CZ.
Post by: eno on March 26, 2008, 09:11:30 am

Tim I think it goes something like this: There were 3 separate manufacturers, CZ, Jawa and Eso. Jawa was the bigger fish & ate up CZ & Eso. Who knows what politics were involved in it all.
The CZ symbol is & was always with CZ, originally a weapons manufacturer.
Jawa started out using some bike made in Germany called the Wanderer, the guy who started Jawa had the initials of JA so he added the the first 2 letters of WAnderer & JAWA was born.
Eso in Czech lingo means Ace, builders of speedway bikes.

Hope this helps to understand the cocktail of machinery that Jawa/CZ wheeled out of it's various factories.

Note: This stuff is all off the top of my head & is no doubt flawed with errors but until someone else who knows more about CZ's (which I'm sure there are) speaks up, this will have to do.

Cheers - Eno

Title: Re: Four Stroke CZ.
Post by: Drakie on May 08, 2008, 09:30:04 pm

Hey Guys, and don't forget OGAR - a badge engineered JAWA that they used on the ISDT bikes when FIM rules stated trophy teams had to have two different manufacturers on it. Even the sticker is the same design as the Jawa one except it just has Ogar written in (.....thinking about it, that makes my old scratched Ogar sticker on my toolbox pretty rare!)

Title: Re: Four Stroke CZ.
Post by: shortshifter on October 26, 2008, 01:48:06 pm

What's that spring thingy at the front of the engine,an oil cooler?