MOPED ARMY

You can do a upgrade on your current exhaust pipe, its in Wiki. Carb 14mm and match your intake. Use a o-ring on intake side and mesh filter. Check points condition and the gap at .016 and set timing at 17 degrees. Rejet carb (edited)

I've got a 14 mm Bing that I took off one of my Free Spirits that I'm kitting and replacing with a PHBG. That should be a good place to start, eh

Richard, are you referring to derestricting the exhaust? It is already derestricted, but I didn't pull the tube out of the baffle. I sanded and gapped the points first thing. I'll check timing. I've got a 14 mm Bing I'll put on too.

Exhaust isn't bad. A little carbon build up, but I soaked it in oven cleaner for a while and hosed it out. I'll do it again. Plug is brand new B5hs.

I like b7hs plug gaped at .020. Take a compression test, wot and air filter off. Let every sit for about a 1/2 hour. Record number in psi. Do the same test with a shot of WD40. record that number and post it. The 5 plug is way to hot for 9 to 1 compression.

Note: compression should never drop, the psi should remain steady on both tests. (edited)

Points pitting, are a sign of a weak ext coil/ wire or cap.

I use a zero ohm cap, fresh copper wire and a tested coil for KV.

I really need to buy a compression tester, I know it. I hate cheap Amazon tools when accuracy counts.

I'll put It on the bench tomorrow and pull the flywheel. I need to lube the points anyway. I'll peek at em and re gap them and set timing at 17*btdc with a cig paper. I've got a box of B6hs, but no 7's on hand.

Thanks Pat. I see it now,I was looking at a different page.

Ken, I get that quiet equals slow, but I'm not looking for fast yet. I just want it running properly stock before trying to get speed out of it. 22-24 mph doesn't seem right for 2hp. But maybe so. This is my first running e50 and it doesn't really compare to my za50.

Same bike driving miles away from my house, never let me down for 10 years!

Cost me next to nothin to go 35-40mph all day long (clutch springs, mesh filter)

I did check to make sure it's clear. It was. I run Klotz TechniPlate 40:1.

It's doing much better. I put a 14 Bing carb, and high flow filter. I'm over 30 now, but I still need to upjet a bit more, and fine tune needle settings. Biggest problem was it too restricted with stock air box, and it was too lean without. Just a matter of getting the air fuel perfect, since it didn't have the original head or carb.

Here is Puch e50 2HP checklist for 30Mph version of Puch moped that I use:

- Check stock cylinder version

- Check points/timing/plug

- De-restrict stock Puch exhaust

- 14mm Bing carb with 14mm Intake & rejet

- New low restriction air filter for Puch/bing

Higher air flow Replacement Puch air filter

- Use a thinner Puch head gasket (.4mm thick)

- Check to make sure that you have a 16tooth front sprocket

- etc .... (edited)

This is what I am using on my Pinto e50 Puch 2hp with stock de-restricted exhaust:

Carburetor Bing 1/14 with 14mm intake

Main jet 72

Needle Jet ... 2.17

Needle position 2nd notch from top

The Bing 212A Atomizer Seemed to run too rich on my Pinto e50.

Bing 2.17 atomizer Doscycles

List of Puch Bing carb atomizers lean to rich common size atomizers:

-215 (leanest)

-217

-220

-222

-212A (Richest)

Needle position 2nd notch from top.

It is too cold here in Michigan to take Pinto moped apart & Bing 14 carb apart in my garage to answer your question right now. I just used the Bing needle that was already in the Bing 14 carb when I bought the Bing 14 used from Motorcycle junk yard off of a Sears Puch Free Spirit moped (e50 Puch Bing 14/14mm intake).