So going about putting my 74 parmakit was actually fairly easy. First of all the stroke is only 0.6 mm off, the motobecane being the longer of the two.

As far as actually getting the cylinder to fit, i first had to bore the cases out. I did this with a sanding drum as opposed to a flap disc simply because I was too lazy to go buy one. I then roughly matched the transfers, just to get an idea if I had to weld extra material. Luckily I did not. Repositioning the studs was also fairly simple. Just thread in studs with jb weld, mark and drill, then tap. Whamo, cylinder fits no problem.

Then there was the difference in wrist pin sizes, this was almost a huge problem, as the jawa wrist pin is very big compared to the moby. After a bit of measuring, I realized something amazing; if you press out the jawa bushing on the con rod, the mobys stock needle bearing fits like a glove!

So the only other variable now is the con rod length. I have yet to order bearings and seals, but Brian and I were out in the garage one night drinking and talking and measuring, and we figured out that the difference in con rod length is almost completely made up for in the difference in case deck height! That is to say, jawa has a shorter con rod, but lower deck height. It was meant to be.

I know some people have voiced their concerns for the vertical engine style fins being an overheating issue, but in my tribute to my first true engine love, i will be throwing a v1 fan and shroud on this thing.

Whew that was alot of words, so anyways, long story short, cylinder is on and it looks like it’ll work. I am still undecided about carb and pipe, but its definitely gonna be some big boy parts.

So i have neglected this for a verrrrry long time. Ok its time to get going again.
This is a moby 74 parmakit on a jawa 207 engine, its gonna be will be wild! Its getting a full rebuild, that kit, moby parma head no decomp, and a custom lightened clutch brace. Also I will be figuring out how to run a cdi with a curve for ignition, and putting this ratty pipe i found at sportwheels on it.

Needless to say, im really digging the jawas right now. I have some really cool ideas for them in the works, and will actually be keeping up with this as per maize and marty giving me shit. Im tired and my brain is broken, but stay tuned for tomorrow and I will put up some real info. Byyyyyye!!!!

I re-worked some Puch blow apart diagrams for some posters. The turned out pretty good. Let me know if you want one.  I made 11×22, 24×36, and 36×48.   

I had a bunch of bells and gears of different sizes and cuts so I needed an easy way to tell what they were without counting the teeth. I took some bearings and filled them with JB weld. Then I cut them in half and laid them in a e50 case half with a shitty old crank. This way i can slop a bell and gear in and see how they fit and  spin. The new bells have needle bearings and spin so well. 

 Oh my, too many gears! got em all done! lots of happy e50s to be built now!