Hi, please tell me how to restore this

I picked this up from a local yard sale. I have no idea what I am doing with a moped. I am mechanically inclined, though. I've built and rebuilt a chinese GY6 scoot several times.

Can you guys please give me a cliffs notes on what I need to do in order to completely disassemble this and rebuild it? I have a full set of shop tools. My intent is to fully pull it apart and put it back together cleaned up. I'll take the pink stuff to a body shop to get it sprayed out of convenience but otherwise I'll do all the work myself. Bullet points are fine, I can research on my own, I just need to know what the unknown unknowns are--specialty tools, techniques, etc. Motor is 505/1B. THANKS!

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Re: Hi, please tell me how to restore this

Oh, also I have some black plastic pieces that I believe are the 'running boards'. Whatever, cool. What about the side panels I see on most G3's? where can I get a set of those?

Re: Hi, please tell me how to restore this

Mark Younggren /

Solid find.....How much?

Re: Hi, please tell me how to restore this

I like how your only concern is painting the pink. Dude if you paint over that pink paint you should probably go back to rebuilding gy6 scooters. That shits dope..

Re: Hi, please tell me how to restore this

Dude, if you have individual problems were happy to help. But

Nobody is going to walk you through this completely..but I'll give it a shot

First, does it run? Regardless your going to rebuild the engine. The seals are 40years old and need replacing....Soo tools, bearings, seals, gaskets. Possibly new crank cylinder and Piston. Before you start, does the engine spin over? If Soo clean the carb and check for spark. If no spark get acquainted with electrical trouble shooting. If it runs, you can proceed, of not. Think about wether you want the project or of it's too big to take on with your knowledge.

Then, brakes, tires, bulbs, paint, cables...is the tank leaky? If Soo a new one will probably cost more than what the whole bike is worth.

The engine appears to be a 505/1a. So the underpowered 30mph version. The d is the better variant, 30mph but alot more power. Easily will hit 40 with mild mods...if you want it faster, your gonna want to do the mods while you have it apart. You can switch out a d crank n jug easily.

Edit, diddnt see that it was a b. Your gonna want to change that.lol (edited)

Re: Hi, please tell me how to restore this

too bad its the 20 mph motor :(

Re: Hi, please tell me how to restore this

justin becker /

Yep, getting rid of the pink would be a major bummer.

Re: Hi, please tell me how to restore this

Also, understand that carb jetting is paramount, if your too lean your going to seize your engine after you rebuild it. As the gas Carry's oil to lube the top end and bearings.

You have alot of research to do.

Re: Hi, please tell me how to restore this

Isn't the pink just really faded red?

Re: Hi, please tell me how to restore this

Yes, and it's totally sweet.

Re: Hi, please tell me how to restore this

> First, does it run? Regardless your going to rebuild the engine. The

> seals are 40years old and need replacing....Soo tools, bearings, seals,

> gaskets. Possibly new crank cylinder and Piston.

Ran after I bought it from a yardsale but died before I got home.Motor rebuild is no prob a link to a proper parts / gasket kit would be appreciated.

273 miles according to the odo.

> Think about wether you want the project or of it's

> too big to take on with your knowledge.

It's not a problem.

> The engine appears to be a 505/1a. So the underpowered 30mph version.

Apparently, sad.

> The d is the better variant, 30mph but alot more power. Easily will hit

> 40 with mild mods...if you want it faster, your gonna want to do the

> mods while you have it apart. You can switch out a d crank n jug easily.

This is why I'm here. I'm going to tear it down so please just let me know what to get. Just looking for high level bullet points for the teardown and rebuild--both on the bike and the motor.

Re: Hi, please tell me how to restore this

Super into that purple pink fade. So rad.

There’s tons of info on this site to help you. Take it apart, take pics as you go, keep parts together or labeled or laid out in order of how they came off.

The only thing you may need special tools for are tearing down and rebuilding the engine.

Treatland.tv or Doscycles.com will have everything you need to rebuild it. It will be slow as hell with the b engine, but hey, it’s a moped.

Great find, mostly complete, the cool mag wheels...someone would probably buy it from you pretty dang quick if you decided to just pass it on.

Re: Hi, please tell me how to restore this

Treatland.tv doscycles.com https://www.mopedarmy.com/wiki/Sachs

Don't paint the pink, show up with that bike at moped events and make everyone jealous. Anyone can rattle can a bike and it's rarely good, lots of people can powdercoat but nobody can fade a G3 to that specific pink. Also buy a 505/1D motor, bolt it on and that's that

Re: Hi, please tell me how to restore this

> Nick Haber Wrote:

> -------------------------------------------------------

> Treatland.tv doscycles.com https://www.mopedarmy.com/wiki/Sachs

>

> Don't paint the pink, show up with that bike at moped events and make

> everyone jealous. Anyone can rattle can a bike and it's rarely good,

> lots of people can powdercoat but nobody can fade a G3 to that specific

> pink. Also buy a 505/1D motor, bolt it on and that's that

Unlikely I will spray it myself, but if I do it would be with my shop air and paint sprayer. I'm thinking I'll run it to a body shop and get a lime green on it. I'll get the decals and pinstripes recut though. Maybe powdercoat the wheels white. I will admit I have no interest in originality on this thing..

Re: Hi, please tell me how to restore this

No interest in the originality? Thats probably the only one in existence faded to that specific shade of color, which is quite unique. Your gonna undo the work of the sun to paint it lime green?.... Nice.

Re: Hi, please tell me how to restore this

Leave the pink, get a "save the boobies" bumper sticker, and you'll have the only chick magnet moped in existence.

Re: Hi, please tell me how to restore this

Ohh dude please keep the pink. Super awesome...

The main weak link for Sachs is the badly designed clutch. Well actually, it's great when stock! But your not going to make a 50mph blaster like a Puch and have a reliable bike. Unlike most mopeds, the Sachs uses clutch disks like a motorcycle combined with a weird donut shaped spring the compressed the disks... So you tune it to blast and the clutches immediately glaze over...then teardown and repeat...

But, a reliably Dailey driver 40-45mph bike is totally doable as long as you don't go crazy with it.

The major retailers are treatland.tv, and doscycles.com. both will have all the rebuild parts. Imma try to lay out some parts for a good mild Sachs build...but everybody does it in their own way..

Here's a link to a complete rebuild pack with the 'd' stroked crank. Paired with a d jug and Piston and you'll be on your way. Your bike has a 10mm intake and carb. Very restrictive. So you'll need a 15mm carb like a bing 15, 14 or 15mm intake manifold...an expansion chamber exhaust is going to be a good idea as well..like a resonant supercharger for a two stroke.

https://www.treatland.tv/sachs-505-engine-rebuild-MEGA-BUNDLE-gift-basket-p/sachs-mega-bundle-gift-basket.htm

Re: Hi, please tell me how to restore this

That being said, of your crank is good and reusable. There are other ways to go about more power. You could get a Sachs Athena and run it mildly detuned and not burn up you clutch...that with a 15carb and intake with your stock crank might get you to 40 without a chamber at all....it's a 70cc kit that is capable of burning clutches like tissue paper, but mildly built with the stock crank and no pipe might be great...yould only need a cheap bearing and seals kit to instead of the whole shebang....

https://www.treatland.tv/sachs-athena-70cc-kit-p/sachs-athena-70cc-kit-074000.htm

Remember I could be talking out my ass here....but i would prefer a d setup with a carb and chamber before the kit tho.

Think your gonna need a Sachs thread flywheel puller, circlip pliers, and some other stuff for disassembly/reassembly

Re: Hi, please tell me how to restore this

Maybe someone could trade you something different, to make sure that fade job gets retained for the children of the future to worship.

Re: Hi, please tell me how to restore this

agreed; paint is perfect!

> justin becker Wrote:

> -------------------------------------------------------

> Yep, getting rid of the pink would be a major bummer.

Re: Hi, please tell me how to restore this

I am also in the “please for the love of god keep the pink paint” club.

Pros: Bad people will think twice before stealing it! Good people will admire your beautiful bike!

Cons: None! The color is awesome!

Re: Hi, please tell me how to restore this

Keep the pink .

If for no other reason than it'll definitely increase the resale value .

Re: Hi, please tell me how to restore this

How to restore - my way.

#1 - get it running. https://mopedarmy.com/wiki/Fred%27s_Guide Fred's guide will walk you through about all you need to know. With it running, even slow, you'll be able to diagnose OTHER problems like brakes, ignition, lights, etc so you know what you need to fix. get the trans all filled with good fluid etc etc.

#2 - you can rebuild that one or adapt another engine, kit etc. all depending on what you want out of it and how you felt with it after step 1. At minimum I'd recommend swapping to an A cylinder, intake (should bolt on) and exhaust header. A dellorto SHA should fit allowing more tunability and reliability from the carb, and an A header with slip-on chamber gives a modest performance boost. Also plug the decomp. Performance will be up to you ultimately and everything you need to know including plugging decomp is here: https://mopedarmy.com/wiki/Sachs_505/1a_performance

#3 - general maintenance. whatever you decided to do with the engine, a few things that are almost always a good idea - new tires for sure, new cables usually good idea, and new brakes often needed too.

#4 - aesthetics last. I wouldn't worry about the side covers, I think it looks better without. The floorboards are hard to find but stull like that post a "WTB" post (want to buy) in the Buy/sell forum here, also try "lovers of sachs mopeds" in facebook groups.

#5 (and really should be 0.5 since this probably oughtta come before #1) - find some local folks to ride and fix shit with. it's the best part of mopeds hands down

Re: Hi, please tell me how to restore this

Since no one else mentioned it, leave it pink. Someone has painted that pink and re applied the decals. That is not sun faded.

Re: Hi, please tell me how to restore this

if someone repainted it; where did they get the gas tank decal with the mix ration info?

Re: Hi, please tell me how to restore this

Thanks for all the info guys I really appreciate it.

I have _no interest_ in originality on this. I understand that bothers some folks. I would be willing to trade the body parts off if someone really wants them.

I do want the side panels that are missing--where can I track a set of those down? As for floorboards--they came with the bike but not attached.

As for getting it running--no interest. I want to tear it down completely and build it back up from scratch. My last scoot I did piecemeal and I have regretted not just doing a ground-up build, engine included.

> Sachs thread flywheel puller, circlip pliers,

I have circlip pliers and a three-jaw puller (will that work?). Anything else I might need?

I'm looking to move quick on this whole thing. I'll tear it down Sunday and make a parts list and then hopefully order everything at once. Budget is ~500 not including paint. Enough?

Re: Hi, please tell me how to restore this

Hope you are able to find pink engine covers.

Re: Hi, please tell me how to restore this

> Jai Dot Wrote:

> -------------------------------------------------------

> if someone repainted it; where did they get the gas tank decal with the

> mix ration info?

Anything can be duplicated. The real question is, how can the sun fade red out on the bottom of the tank, where it doesn't shine. When the sun fades something it does not do it that uniformly. Betcha its pink under the seat too.

That was the original color or some one has repainted it. (edited)

Re: Hi, please tell me how to restore this

Here is a weathered somewhat faded one. Notice the heavy wear and fading of the decals, and that the red has turned more of a rust color. Btw, The red petcock handle below the tank (which has been replaced) is a good comparison to the original red color of the tank when new.

Sachs-G3-672x600.jpg

(edited)

Re: Hi, please tell me how to restore this

It had to have been pink originally. There are plenty of bits out of direct sun that have the same shade. If it was repainted then it happened a loooong time ago.

Bike has 273 miles btw.

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