SGX50 Sky with chrome plating on the exhaust cover
Honda SGX50 Sky Specs…..
The Honda SGX 50 Sky was a budget, step through, 2 stroke, 49cc scooter/moped hybrid with 16 inch wheels sold in the UK March 1997 and May 2003.
The SGX50 Sky was available in 3 different styles, a basic model, a ‘Deluxe’ model with chrome plating on the headlight, tail light, indicators and rear carrier rack and a ‘Fun’ model with semi transparent bodywork.
Although the SGX50 Sky was popular for a short while in the UK, it proved very popular in Southern Europe because of it’s simple styling and ‘easy to use’ features.
The SGX 50 was, at one point, considered as a likely replacement for the Honda C90 Cub.
Working on your bike? You’ll need a SGX 50 workshop manual…
Basic model info… |
|
|---|---|
| Manufacturer: | Honda |
| Model: | SGX50 |
| CC: | 49cc |
| Engine type: | Single cylinder (2 stroke) |
| Years in production: | 1997 to 2003 |
| Style of bike: | Scooter |
| Insurance: | Group 3 (of 17 – estimated) – Expecting your insurance to go up this year? Get a discount at Confused.com |
SGX50 Sky rear carrier rack / parcel shelf
A little bit about the Honda SGX 50 Sky…..
Models and years (in the UK)
| SGX50-V Sky (March 1997 to Dec 1997)….. | |
| Description: | Budget step through moped with 16 inch, cast alloy wheels, moulded bodywork, rear carrier rack and dual seat. |
| Available colours: | Black, blue/orange or red |
| Cost new: | £1095 |
| SGX50-V Sky (Jan 1998 to Oct 1998)….. | |
| Description: | Same as above model with different colours. |
| Available colours: | Blue/orange, red/black, black/yellow or brown |
| Cost new: | £1095 |
| SGX50-X Sky (Nov 1998 to March 2001)….. | |
| Description: | Same as above models with different colours. |
| Cost new: | £1095 |
| SGX50-Y Sky (April 2001 to June 2003)….. | |
| Description: | Same as above models. |
| Cost new: | £1095 |
| Other SGX50 Sky models….. | |
| SGX50 Sky Deluxe: | Deluxe version features chrome-plated parts such as headlight, taillight, indicators and carrier rack. |
| SGX50 Sky Fun: | Fun version features excit-ing new ‘transparent’ colour bodywork. |
SGX50 Sky single cylinder, 49cc, 2 stroke engine
Engine and gearbox stuff…..
| Displacement: | 49 cc |
| Engine type: | Single cylinder (2 stroke) |
| Bore×Stroke: | 39×41.4mm |
| Compression Ratio: | 7:1 |
| Cooling system: | Air cooled |
| Clutch: | V-Matic |
| Gearbox: | Automatic |
| Gearbox oil: | Separate gearbox oil (10w40 gear oil) |
| Max. Power Output: | 2.5 BHP (@ 6,500rpm) |
| Max. Torque: | 3 NM (@ 5,500rpm) |
| 0-62 mph time: | For bloody ever!!! |
| Top speed (approx): | Slightly faster then walking? |
| Idle speed: | 1800rpm |
| Final drive: | CVT (constantly variable transmission) belt drive |
SGX50 Sky genuine Honda exhaust
Carb, fuel and oil stuff…..
| Fuel system: | Carburetor |
| Carb type: | 1 x Keihin 12mm piston-valve type |
| Carb type: | PHVA12 |
| Fuel type: | Unleaded petrol |
| Lubrication: | 2 Stroke oil |
| Gearbox oil type: | 10w40 Motorcycle oil |
SGX50 Sky starter motor relay (part no: RC2208)
Electric stuff…..
| Ignition type: | Electric CDI |
| Starter: | Electric start and kick start |
| Electrical system voltage: | 12 volts |
| System voltage: | 14 to 15 volts (@ 5000rpm) |
| Spark plug: | 1 x NGK BR6HSA |
| Spark plug gap: | 0.6 to 0.7mm |
| Spark plug tightening torque: | 14nm |
| Spark plug ignition: | 1 x Coil (built into the CDI) |
| Magneto/flywheel tightening torque: | 40nm |
| Battery: | YTX4L-BS / CTX4L-BS |
SGX50 Sky 16 inch cast alloy wheels
Shocks, brakes and wheels stuff…..
| Front wheel type: | 3 Spoke cast alloy wheel |
| Front tyre size: | 250-16 (tubed – Same as 2.50-16) |
| Rear wheel type: | 3 Spoke cast alloy wheel |
| Rear tyre size: | 275-16 (tubed – Same as 2.75-16) |
| Front wheel spindle torque: | 44nm |
| Rear wheel nut torque: | 118nm |
| Front tyre pressure: | 25psi |
| Rear tyre pressure: | 32psi |
| Front brake: | Single disc brake with 1 pot caliper |
| Front brake disc: | Disc brake MD931D (EBC) |
| Front brake pad: | EBC SFA193 |
| Rear brake: | Drum brake |
| Rear brake pads: | EBC H303 |
| Front Suspension: | Telescopic grease-damper fork |
| Stanchion diameter: | 27.2mm |
| Front suspension travel: | 70mm |
| Rear Suspension: | Single monoshock |
| Rear suspension travel: | 80mm |
SGX50 Sky 49cc engine cylinder barrel
Weights, measures ‘n stuff…..
| Length (wheelbase): | 1,230mm |
| Seat height: | 775mm |
| Width: | 665mm |
| Ground clearance: | 135mm |
| Dry weight (no oils, fluids etc): | 71kg |
| Fuel tank capacity: | 4.5 litres |
Basic SGX50 Sky model in red
Service stuff…..
| Gearbox / final drive | |
| Check oil: | Every 4000km (2485 miles) or 6 months |
| Change oil: | Every 24 months |
| Gearbox / final drive oil: | 10w40 Motorcycle oil |
| Hydraulic brake system | |
| Check brake fluid: | Every 4000km (2485 miles) or 6 months |
| Change brake fluid: | Every 24 months |
| Brake fluid: | DOT 4 motorbike brake fluid |
SGX50 Sky view under the seat with battery, 2 stroke and petrol caps and identification sticker
Frame number location…..
The frame number information plate can normally be found on the main frame beam behind the front wheel (on the right hand side as your sitting on the bike).
Honda SGX 50 Sky clock
Useless stuff…..
Very cheap, cheerful and basic moped and parts are fairly easy to source and cheap.
The SGX50 Sky was, a 1 time, likely to be the successor to Honda’s massively popular C90 Cub, but unfortunately it fell short of the mark.
The SGX 50 was alot more popular in warmer European countries then it was in the UK.
Buying advice…..
The Honda SGX50 Sky was a fairly reliable and cheap 2nd hand bike. Larger front wheels make it popular with learner riders.
Things to check are:
Exhausts (as the originals are mild steel, which rots. Pattern replacements are around £70).
Automatic choke: The auto choke is attached to the top of the carb and can be problematic as they age.
Forks: As there not easy to get hold of in good condition 2nd hand
The SGX50 was popular as a food delivery bike in many cities (Pizza, Kebabs etc) and these generally will have been used and abused so are best avoided (you can usually tell the delivery bikes as they often have a modified seat and larger carry rack on the back).
There were some ‘special edition’ models of the Honda SGX 50 Sky, but these only had a few modest visual changes and aren’t really worth anymore then the standard models.
360 Degree view of a 2001 Honda SGX50 Sky…
Sources / Thanks to:
Honda Owners Club UK – Who have a handy SGX50 sale brochure you can download from their site.
Disclaimer: The information on this page is correct to the best of our knowledge. But the info should NOT be taken as 100% accurate as we can, occasionally make mistakes!
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