Velosolex Solex Spare Parts for Sale 

              For Spare Parts, please visit the Velosolex Solex Parts for Sale page:

                                     click here >> :   Velosolex Solex Parts for Sale

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  1971-72 Solex S 3800 USA

1971-72 Solex S 3800 USA General Information: 

  - black with gold pinstripes on fenders

  - gold, green and white SOLEX oval sticker on the front of the steering tube

  - many sold in Michigan 

  - clear headlight bulb

  - headlight by CIBIE  

  - twist-grip on right side of handlebars

  - gray/green grips, seat and footrest 

  - standard SEIMA taillight

  - gray brake cable and throttle cable sheaths

  - standard pedals are white, by ECLAIR or LYOTARD

  - ground tab on fuel pump for headlight (no ground wire) 

  - old style rear brake adjuster (lever)

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1971-72 Solex S 3800 USA Details:

Stickers:

~ Gold, Green, and White SOLEX oval

   on the front of the steering tube

 Brake Levers:

                               above - right side brake lever

                                         ~ lever has rounded edges

                                         ~ uses ball-end cable

                              above - left side brake lever

                                         ~ lever has rounded edges

                                         ~ uses ball-end cable

Pedals:

                          above - LYOTARD pedals

                                     ~ standard pedals are white, by LYOTARD, or ECLAIR

    Lights:

                       above - headlight

                                ~ by CIBIE

                                ~ bulb - 6 Volt 6 Watt 1 Amp, clear  

                                   above - taillight

                                              ~ by SEIMA

                                              ~ bulb - 14 Volt AR (14 Volt 7 Watts)

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1971-72 Solex S 3800 USA Photos:

                                             above - 1971-72 Solex S 3800 USA

                              above - 1971-72 Solex S 3800 USA; Detroit, Michigan

                           above - 1971 Solex S 3800 USA

Solex S 3800 USA Specifications & Technical Information

- these specifications are for the Solex S 3800 USA

Engine Size:

 49 cc

Fuel Mixture / Mix / Ratio / Proportion:

~ mix your fuel using a 2.5% / 40:1 mixture ratio  

~ Mix 3.2 ounces of semi-synthetic / synthetic blend 2-cycle oil with 1 gallon of ethanol-free gasoline / petrol. 

~ use only ethanol-free gasoline / petrol

~ Disregard the fuel mixture information in the handbooks as it is outdated.

*  NEVER add oil directly to the Solex fuel tank.

*  Mix your fuel in a clean, separate container. 

~ use only semi-synthetic or synthetic blend 2-cycle oil...do not use full synthetic 2-cycle oil.

~ I recommend Lucas semi-synthetic smokeless, low-ash, 2-cycle engine oil.

~ a shot glass or a 35 mm film canister can be used to measure one ounce.

~ avoid fuels with high ethanol content. Use ethanol-free fuel.

Ethanol is damaging to 2-cycle engines in general,

and is especially damaging to the plastic and rubber pieces of the Solex fuel system.

Full synthetic oil is designed for high RPM engines with tight clearances

and will leave a film on the low RPM, loose clearance Solex piston and cylinder that will lead to over-heating.

Spark Plug:

Champion      L86C

Bosch            W7AC

NGK               B6HS

Denso            W16FS-U

AC                 44 L, 45 L

Motorcraft       AE32

Autolite           2656

Marchal          V36A 

XLG                FF 70 Y 

Cyklon            43

Flashpoint       FP5CR

Spark Plug gap:

 0.020" (0.5 mm)

(CDI ignition - 0.6 mm) 

Piston Ring end gap:

minimum - 0.006" (0.15 mm)

maximum - 0.012" (0.3 mm)

Tire/Tyre pressure:

 Front and Rear:

    2 Bar

    30 psi

Tire/Tyre size:

Front & Rear:

19" x 1 3/4"

Tire/Tyre type:

Cyclomoteur Type Y straight tread

Pedal thread:

1966-74 S 3800 USA (made in France) - M14 x 1.25

1999-2006 S 3800 USA (made in Hungary) - 9/16" - 20

Weight:

61 - 62 lbs. 

Horsepower:

 0.8 hp

Maximum Power: 

585 Watts ( 0.58 kw) @ 2,500 rpm

Top speed:

18.7 mph   (30.1 km/h) 

Clutch:

The S 3800 engine uses a compound, centrifugal clutch.

This type of clutch never fully disengages.

Instead, it slips when the engine is running at idle speed (1500 rpm). 

Video: How to Check the Velosolex Solex clutch

Electrical System Voltage:

6 Volts

Bulbs:

headlight:

1966 - 74 S 3800 USA & S 3800 DOT headlight bulb: 6 Volt 6 Watt 1 Amp, E 10 base (yellow or clear)

Video: How to Disassemble the Solex S 3300 / 3800 Headlight

1967-74 California 3800-S sealed-beam headlight bulb: CEV #125, 6 Volt 21 Watt 

1999 - 2006 Hungarian S 3800 headlight bulb: 6 Volt 15 Watt, P26S base (clear)

taillight:

1966 - 74 S 3800 USA taillight bulb: 14 Volt AR*, E 10 base

1966 - 70 S 3800 DOT, MALY unit :   2 x 14 Volt AR* (taillight & brake light)

1967 - 74 California 3800-S, CEV unit:  #1154, dual element, 6 Volt

*note: 14 Volt AR = 14 Volt 7 Watt    (can use 12 Volt 6 Watt, or 6 Volt 1.8 Watt)

Wiring Diagrams / Lighting:

1973-74 S 3800 USA wiring diagram   

Yellow - main power from stator to switch paddle

              (power for the lighting exits the stator via the serrated stud; there is no wire connection

               between the serrated stud and the switch. The switch paddle must contact the serrated

               stud when the switch lever is turned CCW.)

Red - power from headlight switch paddle, through spring

           and bronze strip, to headlight.

Blue - power from bronze strip to taillight wire

Green - ground (wire from headlight to fuel pump screw)

*Note: the 1966-72 S 3800 USA (and the S 3300) is similar, but instead of a ground wire,

           there is a ground tab mounted on the front of the fuel pump.

           The tip of the bulb must touch the ground tab. See photo below:

                         above: 1966-72 headlight ground tab

                                                    Taillight wire connection: 

                                             Taillight wire connection

                     ~ the connector on the end of the taillight wire attaches to

                        the bronze strip at the rear of the plastic engine hood. 

           For some additional lighting info and photos, see:

                Brian Solex Photobucket Lighting Album

 MALY brake light switch

     - used on Solex S 3800 DOT and Solex California 3800-S

MALY brake light switch wiring

                              - switch is normally closed, held open  

                              - chain is attached to rear brake cable 

                              - when brake cable moves forward, switch closes,

                                allowing power to the brake light (stop light)

                 above - MALY taillight assembly

                    - used on Solex S 3800 DOT

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1999-2006 Hungarian S 3800 USA wiring diagram:

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Stator / Magneto:

A - Ignition Coil

B - Lighting Coil

   * Coils may be different colors than shown. 

C - Condenser

D - Points adjusting screw

E - Lock Screws

F - Points (Contacts)

G - Rupture Mark

H - Ignition Coil - Points connection

I  - Cam Wiper Pad

J - coil fixing screws, length 22 mm (M4 - 0.75 thread on French engines, 0.7 on Hungarian engines)

K - Lighting Coil connection 

 ~ Flywheel Puller

          - Do not use a standard two - , three - , or four - jaw puller to remove the flywheel (rotor).

          - Use a puller that makes use of the three M6 tapped holes in the flywheel (rotor).

          -  http://briansolex.free.fr/toolkit.html

           Video:  How to Remove the VeloSolex Flywheel / Rotor

~Ignition Points / Points Gap:

The ignition points must be adjusted so that they just begin to open when the "RUPTURE" marks on the flywheel (rotor) and engine (G in above photo) line up, rotating the flywheel (rotor) clockwise.

There is no set points gap on a Solex engine.

The amount that the points open is not relevant.

When the Rupture marks are aligned, there should be minimal space between the points contacts.   

The arrow on the engine does not indicate rotation. It points to the Rupture mark.

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      Instructions for installing Hungarian electronic ignition kit:

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Carburetor

Parts of the carburetor

A - air jet

B - fuel filter

C - START lever (air choke lever)

D - fuel Jet

E - fuel return spout

F - throttle barrel

G - cable lock screw

H - cable pulley

 I  - throttle lever

J - return spring

K - cable sheath abutment bracket

L - air horn (venturi)

Video: How to Replace the Carburetor Fuel Filter

Video: How to Disassemble, Clean and Reassemble the VeloSolex Carburetor

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Fuel Tank

Video: How to Replace the Fuel Tank Filter

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Fuel Pump

Video: How to Rebuild the VeloSolex Fuel Pump

Video: How to Install the VeloSolex Fuel Pump Plastic Seating Piece

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Rear Wheel Hub

(approx. 1967 to 1974 ... 83 mm drum)

 

 

Video: How to Remove and Install the VeloSolex rear brakes

 

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Frame:

 

Handlebar

Video: How to Remove the VeloSolex Handlebar

 

Decompressor Thumb-lever

Video: How to Assemble & Adjust the Decompressor Thumb-Lever

 

Headset

Video: How to Assemble & Adjust the Velosolex Solex Headset

 

Carburetor Shield

Video: How to Install the Carburetor / Exhaust Shield

 

Tool Box

Video: How to Remove & Install the VeloSolex Tool Box

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

inside the tool box is usually:

~ two tire changing tools

~ one 7 x 9 flat steel open end wrench

~ one 9 x 12 or 9 x 13 flat steel combination wrench

~ one 14 x 21 or 14 x 17 flat steel combination wrench

~ two foam pads

~ there is sometimes a multi-size, flat steel, open-end wrench / tire tool

 

Front Brake Caliper

Video: How to Assemble & Install the VeloSolex Front Brake Caliper

 

Brake Cables - MBK / Impex / Cyklopress 3800

Video: How to Replace the Brake Cable on the MBK, Impex & Cyklopress S 3800

 

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  How to Date a Velosolex Solex S 3800 USA

 (How to Determine Year of Manufacture)

 (Identification)

 

 

Engine Serial Numbers:

40xxxxx - 45xxxxx       1967-68

500xxxx - 503xxxx       1967

504xxxx - 514xxxx       1968

515xxxx - 5198xxx       1969

5199xxx - 523xxxx       1970

524xxxx - 52717xx       1971

52718xx - 5277xxx       1972

528xxxx - 5305xxx       1973

5306xxx - 532xxxx       1974

532xxxx - 534xxxx       1974-78 

 

Frame Serial Numbers:

  1970:  800xxxx - 800xxxx 

  1971:  800xxxx - 801xxxx 

  1972:  801xxxx - 802xxxx    

  1973:  801xxxx - 804xxxx 

  1974:  804xxxx - 807xxxx 

     

Note: Engine numbers, not frame numbers, are used to determine the year of manufacture of a Solex. Frame numbers can only be used as a clue or to confirm year of manufacture.

 

Note: 

Please contact me for help in determining

the year of manufacture of your Solex S 3800 :    

e-mail BrianSolex : briansolex@protonmail.com

 

Notes:

~ The 14-3-1966 (or 25-10-1962) date that is cast into the top of the crankcase is not the date of manufacture;

It is the date of approval of the Cyclomoteur 3800 engine (or Cyclomoteur 2200 engine). This same date is cast into the top of every Cyclomoteur 3800 engine.  

 

 ~ The Cyclomteur 3800 engine was used not only on the model S 3800,

     but also on the model 5000, the model 4600, and the Micron.

 

 ~ The online Solex engine serial number charts do not pertain to Solexes sold new in the USA, and therefore cannot be used to accurately date an American (or any other export) Solex.

 

Video: How to Locate the VeloSolex Engine & Frame Serial Numbers

 

Please contact me for help with determining year, model or version of your Solex:

briansolex@protonmail.com 

 

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      S 3800 USA - No Spark troubleshooting procedure:

1. Install a NEW spark plug...not almost new, good as new, only used once, etc. NEW, NEW, NEW. Be sure to use a gauge and set the electrode gap to 0.5 mm

*Check for spark by carefully holding the threaded portion of spark plug against the cylinder head or crankcase and spinning the flywheel clockwise, looking and listening for a blue / white / purple spark to crack across the spark plug gap. 

 Video: How to Check for Spark

~ An orange / yellow spark is no good.

~ Feeling a jolt while holding the end of the spark plug wire is not an indication of a good ignition.

2. still no spark...install a new spark plug wire. Be sure that the end of the spark plug wire has a good clean connection against the tab on the back of the ignition coil.

 Check for spark as above*.

3. still no spark...remove flywheel (rotor) using special Solex flywheel puller; clean the points (search online for instructions on cleaning points). Disconnect the ignition coil from the points and test the points hammer & anvil for continuity when closed, no continuity when open. Reconnect the ignition coil wire. Install flywheel. Adjust the points as described above in the Stator / Magneto section under ~Ignition Points / Points Gap. Check for spark*.

4. still no spark...check the condenser or install a new condenser, check for spark*

Video: How to Check the Condenser

5. still no spark...check the ignition coil or install a new ignition coil, check for spark*

6....install new flywheel.

(On a Solex, the flywheel key is part of the flywheel casting. The key fits into the keyway slot on the crankshaft to correctly position the flywheel on the crankshaft. You must verify that the flywheel key has not been sheared off.)

 

Contact me for my "Ignition Checks" article: briansolex@protonmail.com 

 

Instructions for making a simple Solex flywheel puller (magneto rotor extractor) can be found on this page:

  http://briansolex.free.fr/toolkit.html

 

For instructions on how to test a condenser, see this page:

http://briansolex.free.fr/faqs.html

 

Video: How to Test the VeloSolex Solex Condenser

 

 

 

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Value / Worth / Price / Prices of a Velosolex Solex moped bike

 

What Is the value of a Velosolex Solex bike?

What is a Velosolex Solex bike worth?

   There are no set prices for Velosolex Solex bikes.

   

 Prices can be affected by time of year, bike location, and whether or not the seller is willing to pack and ship the bike.

time of year - prices are generally lower in Fall and Winter.

location - Solexes were not sold in every State...most were sold in Michigan, Ohio and Indiana, so the prices are lower in that area.

pack and ship - if you are only able to sell locally, the prices will be lower.

 

   Listed selling prices do not determine the value or worth i.e. just because you see a Solex with a listed price of $1,000, this does not mean that this is the value or worth, or that this is what the bike will sell for.  It is just showing what the seller thinks the bike is worth.

   

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                    Velosolex Solex S 3800 USA For Sale

Check out the Facebook " Velosolex Solex Buy & Sell " group:

https://www.facebook.com/groups/velosolexsolexbuysell

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Grand Rapids, Michigan

1973 Solex S 3800 USA

~ $425

~ no shipping; local pick-up only

~ info: https://www.mopedarmy.com/forums/read.php?2,4593404

~ contact Mike: michaeldomanski49@gmail.com 

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 --------------------------------------------------------------------------------------------------

                            Velosolex Solex 6000 For Sale

  ------------------------------------------------------------------------------------------------

                             Velosolex Solex 5000 USA For Sale

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end

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• Greater NY Citroen & Velosolex Club (Bastille Day Rendezvous)

1999-2005 Hungarian Solex S 3800

1999-2005 Hungarian Solex S 3800 General Information:

 The original Solex company was purchased in late 1974 by Renault, then one month later by Motobecane (1974-85) which became MBK (1986-88), and then closed up in November of 1988.

The machinery used to manufacture the S 3800 model was eventually purchased in 1993 by Gathy Kiss and Georges Safar and relocated to Hungary, where S 3800s were manufactured until 2005 using leftover French parts and new parts made in Hungary at the Impex / Cyklopress factory in Berettyoujfalu. 

By 2005, several of the larger chains of machinery had become worn and were scrapped.

Today, about 60% of the machinery is still in operation manufacturing spare parts in Hungary, but no complete S 3800s have been made since 2005.

Hungarian Solex S 3800s were made from 1994 until 2005.

(Impex - 1994 - 2004)

(Cyklopress - 2004 - 2005)

Hungarian Solex S 3800s were sold in the USA by VeloCruz in Utah from 1999 until 2005. They were available in both Standard and Deluxe versions, the Deluxe version having stainless steel fenders.

~ for the most part, the Hungarian Solex S 3800 was identical to the 1986-88 French MBK S 3800

~ 22 mm handlebars

~ pedal thread is 9/16" - 20

~ black seat, footrest and grips

~ the last Hungarian bikes were equipped with an electronic ignition

~ equipped with a brake light (in the USA)

For a free .pdf copy of the 84 page Impex S 3800 Repair Operations Manual,

contact me at: briansolex@protonmail.com

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1999-2005 Hungarian Solex S 3800 USA Details:

Carburetor:

                   - 28 cc fuel jet is standard

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Pedals:

                            Pedals / cranks:

                        ~ pedals are black with orange reflectors

                        ~ cranks and pedals have 9/16" - 20 thread

                        ~ sprocket side is right hand thread; left side is left hand thread

                        ~ 9.5 mm cotter pin

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Taillights (USA):

                                              Taillight  - early style

                                           ~ rectangular shape

                                           ~ Soubitez 4000

        Soubitez taillight bulbs

        ~ top bulb (brake light) - 6 Volt 10 Watt (15 mm bayonet type bulb) - black wire

        ~ bottom bulb (taillight) - 6 volt 4 watt  (9 mm bayonet type bulb) - red wire

................................................................................................................................................

                                               Taillight - later style

                                                           ~ hex shape

                                                            ~ by ULO / Luxor

 ULO Luxor taillight bulbs

~ top bulb (brake light) - 6 Volt 5 Watt (15 mm bayonet type bulb) - black wire

~ bottom bulb (taillight) - 6 Volt 4 Watt (9 mm bayonet type bulb) - red wire

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 Brake Levers and Controls:

                 above - right side brake lever and control

                            ~ twist-grip throttle

                            ~ brake lever controls the front brake, and the gas, too.

                            ~ housing contains a switch to operate brake light

                      above - left side brake lever and controls

                                 ~ small thumb-lever is for the decompression of the engine

                                 ~ housing contains a switch to operate brake light

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I.D. Tags:

                               above - Impex Hungaria KFT ID tag

                                            ~ serial number

                                            ~ engine size (49 cc)

                                            ~ noise level (77 dB at 1875 RPM)

                                            ~ silencer (muffler) type: TPSI 3009

                                            ~ MADE IN HUNGARY

above -  Cyklopress tag

 VEHICLE CATEGORY: A

 1. air filter

 2. carburetor

 3. manifold

 4. engine type

 5. cylinder head type

 6. engine size

 7. manifold

 8. muffler

 9. drive-roller diameter

10. tire size

11.

12. ................

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Tool Box:

                                                 1  box wrench 17 mm x 21 mm

                                                 1  open end wrench 9 mm x 10 mm

                                                 2  tire removal tools

                                                 2  sponge pads

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Electronic Ignition:

          ~ the last Hungarian Solexes sold in the USA had electronic ignitions,

             consisting of a module to replace the points and condenser,

             and a special resistor terminal for the spark plug wire

          ---------------------------------------------------------------------------------------

Instructions for installing the Hungarian electronic ignition kit, available from VeloCruz in Utah:

Note: a timing light is necessary to set the timing (spark adjustment bolt).

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1999-2005 Hungarian Solex S 3800 USA

Wiring Diagram:

 -------------------------------------------------------------------------------------------------------------------

1999-2005 Hungarian Solex S 3800 USA Photos:

 Standard:

                             above - Standard 1999-2004 Impex  S 3800 USA

                         above - Standard 1999-2004 Impex S 3800 USA

             above - Standard 2002 Impex S 3800 USA

                 above - Standard 2005-06 Cyklopress S 3800

Deluxe:

above - 2000 burgundy Deluxe

---------------------------

end

  The Solex S 3800 was available in the USA from 1966 until 1974 (made in France), and then again from 1999 until 2005 (made in Hungary).

  The Solex S 3800 was assembled and sold in many countries other than France, including Germany, Italy, Canada, Switzerland, Yugoslavia, England, Brazil, Uruguay, the USA, and Sweden, just to name a few, and most countries had their own version, created especially for that country, sometimes in order to meet that particular country's regulations. Some versions were very similar to the basic French version, perhaps having only a different logo. And some versions were very different, having special lighting, controls, or other equipment. For example, the S 3800 DOT (found in the USA and Canada) was equipped with a brake light and an electric horn. And the California 3800-S, available only in the USA, was equipped with a sealed-beam headlight, an electric horn, and a brake light    

  The Solex S 3800 was not sold in every State. Most Solex S 3800s were sold in Michigan, especially in the Detroit area. Many were also sold in Ohio and Indiana.

  In 1974, new regulations were created concerning mopeds being imported into America. All new imported mopeds would need to pass new Federal Safety Standards and would need to be equipped with DOT-approved safety equipment. The S 3800s that were available did not meet the new Safety Standards, and did not have the proper safety equipment. So Solex created the model 4600 DOT (4600 V2 and 4600 V3) which had all of the required safety equipment, and which met the Federal Safety Standards.

Please visit my Velosolex 4600 website to learn about the model 4600: 

https://velosolex4600.over-blog.com

      Solex S 3800 Parts List, circa 1975

                       Click on each image for a larger view.

end

For a .pdf copy of this Parts List, contact me at: briansolex@protonmail.com

end