Puch gearing complete

I Finally got around to gearing the Puch & the E50, slapped a 16 tooth so it's now 16x45. Still really responsive, does 30mph easy, cruising at quarter throttle. Does 40mph and manages the hills well. So that's it I'm happy with that not going to mess about with it now. 40mph was my goal and to get up the hills that we are surrounded by. Need to sort the jetting though as its still to rich.

 

 

Puch gearing

I messed about with my chain and could only fit a 12 front sprocket on. So on the last run I had a 12x45 set up. This was amazing in the hills in the Kernow but killed the top end cruising speed, 30mph cruise 34/35 top end. I bought a new chain and installed a 14x45. This instantly added 5mph to the cruising top end. Yesterday I put a 15 on so 15x45 and hit 40mph this doesn't sound fast but on a mid range biturbo pipe and a stock 15mm Bing too end adjustments are fiddly to achieve. I'm a big guy so it's a fine balance between top end & being able to get up the hills, the hills around here are pretty big! Next will be a 16! I'm hoping this will be it cruising at 40mph and still able to cope with the hills with me on board.
The pic is making use of my house mates tressells, Nice!

 

New Paoili hydraulic forks fitted

So today we got the forks fitted and wheel back on, also fitted the bing on as I want to test it's low end capabilities and the performance difference. So these forks are definitely better, bigger but heavier also. The ride should be smoother so I'm pleased with the overall purchase. For €60/£51/ $78's delivered they were a eBay bargain, French eBay certainly has come up trumps with these puppies!
The front mud guard or "fendooor" if your American is going to need to fabrication to get it re-fitted as the aren't any mounting options apart from the god awful look of having it like a mud plucking scrabbler.

Test run and MOT next

Cheers Cookson

Paioli hydraulic forks arrived!

Bought some new hydraulic forks to replace the crappy stock Puch ones. Few others bits needed, but I'm really pleased got them for €60 delivered from France! Bargain

Best birthday cake

Motor stand

So with winter fast approaching my attentions have yet again fallen to the E50, my bug bear, I've spent a fortune in it, hours changing bits and still no joy! So I've invested in a stand so I (cookson) can work in the bench and be able to access all angles properly with out damaging it. I'm going to buy all new gaskets, crank seals again, sparky, etc... At the moment It lies idle in a bucket polished & case matched with a brand new racing crank 70cc head on! Just doesn't work!

E50 case match

I thought with arrival of a new race crank and its perfectly timed perish of my stock crank I thought I'd case match the engine. So I practised on my original E50 before using my carrying it on the newer case!

So if you fancy a go just secure the engine in a vice or on a stable surface. Then offer the larger gasket mine is a 70cc to the head and mark up the showing case with a permanent marker

E50 case match II

The remove the Gasket to reveal the black marks and the metal which will need removing. The case will need grinding back to match up with the head and allow a greater air flow thus higher pressure! More pressure with a racing crank a 70cc head and a roller bearing should mean the good times rolling baby!

E50 Case match III

Once it's ground out, I used a Dremmel with a grinding wheel. Just shave the metal out, I choose to angle back the cut to to fade the grind to a taper. This should be fine, but we will see!

Changing of the guard

So after a week of the bike running it broke down again. The compression was mentally high around 170 the head was getting fuel and a great spark. So Cookson suggested the crank seals may have gone. They did look ropey so it was a great shout. De-mounted the engine and began work.

Changing of the guard II

When I got the clutch out I found that I now have a three shoe clutch wheel. Ace. Then came across the problem of moving the last bearing to change the bigger of three seals. After researching on Moped army’s wiki I found this picture of a car ball joint fork to pop them up. Also suggested using screwdrivers to force the situation if you haven't got access to a fork.

Changing of the guard III

So then the crank seals are all changed and now its running again. has 140 compression and starts on the first kick again. Saweeeeeeeeet MOFO's

New seat

So the new seat finally arrived from Treats, it took 3 wks in all. Two days to get here and the rest of the time it was sat in customs awaiting Clearance! A £18 custom charge and the beauty was in my hands. Just need to make a bracket to mount the seat to the frame! Will probably do that on the weekend then!

Hallelujah!!!!

The ZA50 has rolled into town!

ZA50 disassembly!

My Puch City is a Cynthia!

So after all the work and replacing gaskets, cylinder & pistons the E50 died in dramatic fashion! All vitals were good, but when started it sounded like a bag of nails! We think that the crank is faulty and has come loose some how! The con-rod has a lot of play in it (left and right) which I don't think is normal! So........... Mopeds at dawn have bought a ZA50! The two speed model should give us some head aches but also should give me some real speed too!

Split, cleaned, New cylinder!

Split the case cleaned the remainder of piston III, the cylinder was scored so a new cylinder was ordered. The gaskets have all been replaced and also a new fuel filter. All In all it took 3hrs. Hope it works else it's a new engine!